din_standard string | id string | iso_standard string | part_description string | source string | source_quote string | url string | verified_fields list | disagreements list | interchangeability string | bs_standard string | also_reported list | dimension string | din_value string | iso_value string | size string |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
DIN 1 | din-1 | ISO 2339 | Cone Pins, untempered | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 1 | ISO 2339 | | Cone Pins, untempered | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-1/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 125 | din-125 | ISO 7089, 7090 | Washer, Plain | https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners | Washer, Plain | DIN 125 | ISO 7089, 7090 | Fully interchangeable | Normal vs chamfered faces. | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-125/ | [
"din_standard",
"interchangeability",
"iso_standard",
"part_description"
] | [
{
"field": "iso_standard",
"versions": [
{
"as_of": "2026-08-05T00:00:00",
"source": "https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners",
"source_quote": "Washer, Plain | DIN 125 | ISO 7089, 7090 | Fully interchangeable | Normal vs chamfered faces.",
... | Fully interchangeable | null | null | null | null | null | null |
DIN 126 | din-126 | ISO 7091 | Product grade C washers - designed for use with Hexagon Head Bolts and Nut | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 126 | ISO 7091 | | Product grade C washers - designed for use with Hexagon Head Bolts and Nut | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-126/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 127 | din-127 | null | Spring Lock Washers with square ends or tang ends | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 127 | | BS4464B | Spring Lock Washers with square ends or tang ends | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-127/ | [
"bs_standard",
"din_standard",
"part_description"
] | null | null | BS4464B | null | null | null | null | null |
DIN 128 | din-128 | null | Curved and wave Spring Lock Washers | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 128 | | | Curved and wave Spring Lock Washers | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-128/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 137 | din-137 | null | Spring Washers, curved or wave | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 137 | | | Spring Washers, curved or wave | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-137/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 1440 | din-1440 | ISO 8738 | Medium type washers for pins | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 1440 | ISO 8738 | | Medium type washers for pins | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-1440/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 1443 | din-1443 | ISO 2340 | Clevis Pins without head | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 1443 | ISO 2340 | | Clevis Pins without head | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-1443/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 1444 | din-1444 | ISO 2341 | Clevis Pins with head | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 1444 | ISO 2341 | | Clevis Pins with head | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-1444/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 1470 | din-1470 | ISO 8739 | Grooved Pins, full length parallel-grooved with pilot | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 1470 | ISO 8739 | | Grooved Pins, full length parallel-grooved with pilot | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-1470/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 1471 | din-1471 | ISO 8744 | Grooved Pins, full length taper-grooved | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 1471 | ISO 8744 | | Grooved Pins, full length taper-grooved | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-1471/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 1472 | din-1472 | ISO 8745 | Grooved Pins, half length taper-grooved | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 1472 | ISO 8745 | | Grooved Pins, half length taper-grooved | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-1472/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 1473 | din-1473 | ISO 8740 | Grooved Pins, full length parallel-grooved with chamfer | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 1473 | ISO 8740 | | Grooved Pins, full length parallel-grooved with chamfer | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-1473/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 1474 | din-1474 | ISO 8741 | Grooved Pins, half length reverse-grooved | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 1474 | ISO 8741 | | Grooved Pins, half length reverse-grooved | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-1474/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 1475 | din-1475 | ISO 8742 | Grooved Pins, third length centre-grooved | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 1475 | ISO 8742 | | Grooved Pins, third length centre-grooved | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-1475/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 1476 | din-1476 | ISO 8746 | Round Head Grooved Pins | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 1476 | ISO 8746 | | Round Head Grooved Pins | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-1476/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 1477 | din-1477 | ISO 8747 | Countersunk Head Grooved Pins | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 1477 | ISO 8747 | | Countersunk Head Grooved Pins | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-1477/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 1481 | din-1481 | ISO 8752 | Spring-type Straight Pins (roll pins) - heavy type | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 1481 | ISO 8752 | | Spring-type Straight Pins (roll pins) - heavy type | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-1481/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 1587 | din-1587 | null | Hexagon Domed Cap Nuts | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 1587 | | | Hexagon Domed Cap Nuts | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-1587/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 1816 | din-1816 | null | Round Nut with set pin holes inside; ISO metric fine thread | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 1816 | | | Round Nut with set pin holes inside; ISO metric fine thread | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-1816/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 315 | din-315 | null | Wing Nuts with rounded wings | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 315 | | | Wing Nuts with rounded wings | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-315/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 316 | din-316 | null | Wing Screws with rounded wings | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 316 | | | Wing Screws with rounded wings | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-316/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 404 | din-404 | null | Slotted Capstan Screws | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 404 | | | Slotted Capstan Screws | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-404/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 417 | din-417 | DIN EN 27435 | Slotted Set Screw – Long Dog | https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners | Slotted Set Screw – Long Dog | DIN 417 | DIN EN 27435 | Check spec | Legacy to EN conversion. | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-417/ | [
"din_standard",
"interchangeability",
"iso_standard",
"part_description"
] | [
{
"field": "iso_standard",
"versions": [
{
"as_of": "2026-08-05T00:00:00",
"source": "https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners",
"source_quote": "Slotted Set Screw – Long Dog | DIN 417 | DIN EN 27435 | Check spec | Legacy to EN conversion.",
... | Check spec | null | null | null | null | null | null |
DIN 427 | din-427 | ISO 2342 | Slotted Headless Screw with Shank | https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners | Slotted Headless Screw with Shank | DIN 427 | ISO 2342 | Fully interchangeable | Slotted variant. | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-427/ | [
"din_standard",
"interchangeability",
"iso_standard",
"part_description"
] | [
{
"field": "part_description",
"versions": [
{
"as_of": "2026-08-05T00:00:00",
"source": "https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners",
"source_quote": "Slotted Headless Screw with Shank | DIN 427 | ISO 2342 | Fully interchangeable | Slotted variant."... | Fully interchangeable | null | null | null | null | null | null |
DIN 428 | din-428 | ISO 4034 | Hexagon Nuts, Grade C | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 428 | ISO 4034 | | Hexagon Nuts, Grade C | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-428/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 433 | din-433 | ISO 7092 | Washer, Plain Small | https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners | Washer, Plain Small | DIN 433 | ISO 7092 | Fully interchangeable | Small series. | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-433/ | [
"din_standard",
"interchangeability",
"iso_standard",
"part_description"
] | null | Fully interchangeable | null | null | null | null | null | null |
DIN 433-1 | din-433-1 | ISO 7092 | Product grade A washers - with a hardness up to 250 HV designed for use with cheese head screws | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 433-1 | ISO 7092 | | Product grade A washers - with a hardness up to 250 HV designed for use with cheese head screws | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-433-1/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 433-2 | din-433-2 | ISO 7092 | Product grade A washers - with a hardness up to 300 HV designed for use with cheese head screws | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 433-2 | ISO 7092 | | Product grade A washers - with a hardness up to 300 HV designed for use with cheese head screws | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-433-2/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 438 | din-438 | DIN EN 27436 | Slotted Set Screw – Cup | https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners | Slotted Set Screw – Cup | DIN 438 | DIN EN 27436 | Check spec | Legacy to EN conversion. | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-438/ | [
"din_standard",
"interchangeability",
"iso_standard",
"part_description"
] | [
{
"field": "iso_standard",
"versions": [
{
"as_of": "2026-08-05T00:00:00",
"source": "https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners",
"source_quote": "Slotted Set Screw – Cup | DIN 438 | DIN EN 27436 | Check spec | Legacy to EN conversion.",
"va... | Check spec | null | null | null | null | null | null |
DIN 439 | din-439 | ISO 4035, 4036 | Hex Nut – Thin | https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners | Hex Nut – Thin | DIN 439 | ISO 4035, 4036 | Fully interchangeable | Chamfered/unchamfered covered by ISO pair. | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-439/ | [
"din_standard",
"interchangeability",
"iso_standard",
"part_description"
] | null | Fully interchangeable | null | null | null | null | null | null |
DIN 439-1 | din-439-1 | ISO 4036 | Unchamfered Hexagon Thin Nuts - product grade B | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 439-1 | ISO 4036 | | Unchamfered Hexagon Thin Nuts - product grade B | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-439-1/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 439-2 | din-439-2 | ISO 4035 | Chamfered Hexagon Thin Nuts - product grades A and B | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 439-2 | ISO 4035 | | Chamfered Hexagon Thin Nuts - product grades A and B | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-439-2/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 440 | din-440 | ISO 7094 | Washers for use in timber constructions | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 440 | ISO 7094 | | Washers for use in timber constructions | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-440/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 444 | din-444 | null | Eyebolts | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 444 | | | Eyebolts | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-444/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 462 | din-462 | null | Machine tools; internal tab washers for slotted round nuts for hook spanner according to DIN 1804 | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 462 | | | Machine tools; internal tab washers for slotted round nuts for hook spanner according to DIN 1804 | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-462/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 464 | din-464 | null | Knurled Thumb Screws, high type | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 464 | | | Knurled Thumb Screws, high type | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-464/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 466 | din-466 | null | Knurled Nuts, high type | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 466 | | | Knurled Nuts, high type | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-466/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 467 | din-467 | null | Knurled Nuts, low type | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 467 | | | Knurled Nuts, low type | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-467/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 471 | din-471 | null | Circlips (retaining rings) for shafts; normal type and heavy type | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 471 | | | Circlips (retaining rings) for shafts; normal type and heavy type | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-471/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 479 | din-479 | null | Square Head Bolts with short dog point | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 479 | | | Square Head Bolts with short dog point | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-479/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 5406 | din-5406 | null | Lock Washers and locking plates for use with rolling bearings | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 5406 | | | Lock Washers and locking plates for use with rolling bearings | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-5406/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 548 | din-548 | null | Round Nuts with set pin holes inside | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 548 | | | Round Nuts with set pin holes inside | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-548/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 551 | din-551 | ISO 4766 | Slotted Set Screw – Flat | https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners | Slotted Set Screw – Flat | DIN 551 | ISO 4766 | Check spec | Slot width/tolerance differences. | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-551/ | [
"din_standard",
"interchangeability",
"iso_standard",
"part_description"
] | [
{
"field": "part_description",
"versions": [
{
"as_of": "2026-08-05T00:00:00",
"source": "https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners",
"source_quote": "Slotted Set Screw – Flat | DIN 551 | ISO 4766 | Check spec | Slot width/tolerance differences.",
... | Check spec | null | null | null | null | null | null |
DIN 553 | din-553 | ISO 7434 | Slotted Set Screw – Cone | https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners | Slotted Set Screw – Cone | DIN 553 | ISO 7434 | Check spec | Point geometry. | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-553/ | [
"din_standard",
"interchangeability",
"iso_standard",
"part_description"
] | [
{
"field": "part_description",
"versions": [
{
"as_of": "2026-08-05T00:00:00",
"source": "https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners",
"source_quote": "Slotted Set Screw – Cone | DIN 553 | ISO 7434 | Check spec | Point geometry.",
"value": "S... | Check spec | null | null | null | null | null | null |
DIN 555 | din-555 | ISO 4034 | M5 to M100x6 Hexagon Nuts - product grade C | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 555 | ISO 4034 | | M5 to M100x6 Hexagon Nuts - product grade C | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-555/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 558 | din-558 | ISO 4018 | Hex Head Bolts (FT), Metric Coarse | https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners | Hex Head Bolts (FT), Metric Coarse | DIN 558 | ISO 4018 | Fully interchangeable | Alt coarse hex FT. | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-558/ | [
"din_standard",
"interchangeability",
"iso_standard",
"part_description"
] | [
{
"field": "part_description",
"versions": [
{
"as_of": "2026-08-05T00:00:00",
"source": "https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners",
"source_quote": "Hex Head Bolts (FT), Metric Coarse | DIN 558 | ISO 4018 | Fully interchangeable | Alt coarse hex F... | Fully interchangeable | null | null | null | null | null | null |
DIN 580 | din-580 | null | Collar Eyebolts for lifting purposes | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 580 | | | Collar Eyebolts for lifting purposes | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-580/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 601 | din-601 | ISO 4016 | Hex Head Bolts (PT), Metric Coarse | https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners | Hex Head Bolts (PT), Metric Coarse | DIN 601 | ISO 4016 | Fully interchangeable | Alt coarse hex PT. | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-601/ | [
"din_standard",
"interchangeability",
"iso_standard",
"part_description"
] | [
{
"field": "part_description",
"versions": [
{
"as_of": "2026-08-05T00:00:00",
"source": "https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners",
"source_quote": "Hex Head Bolts (PT), Metric Coarse | DIN 601 | ISO 4016 | Fully interchangeable | Alt coarse hex P... | Fully interchangeable | null | null | null | null | null | null |
DIN 603 | din-603 | null | Mushroom Head Square Neck Bolts | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 603 | | | Mushroom Head Square Neck Bolts | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-603/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 609 | din-609 | null | Hexagon Fits Bolts with long thread | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 609 | | | Hexagon Fits Bolts with long thread | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-609/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 6319 | din-6319 | null | Spherical Washers and conical seats | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 6319 | | | Spherical Washers and conical seats | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-6319/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 6325 | din-6325 | ISO 8734 | Parallel Pins, hardened: tolerance zone m6 | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 6325 | ISO 8734 | | Parallel Pins, hardened: tolerance zone m6 | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-6325/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 6340 | din-6340 | null | Washers for clamping devices | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 6340 | | | Washers for clamping devices | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-6340/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 653 | din-653 | null | Knurled Thumb Screws, low type | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 653 | | | Knurled Thumb Screws, low type | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-653/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 6797 | din-6797 | null | Toothed Lock Washers | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 6797 | | | Toothed Lock Washers | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-6797/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 6798 | din-6798 | null | Serrated Lock Washers | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 6798 | | | Serrated Lock Washers | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-6798/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 6799 | din-6799 | null | Lock Washers (retaining washers) for shafts | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 6799 | | | Lock Washers (retaining washers) for shafts | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-6799/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 6900 | din-6900 | ISO 10644 | Screw and Washer assemblies | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 6900 | ISO 10644 | | Screw and Washer assemblies | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-6900/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 6901 | din-6901 | ISO 10510 | Tapping Screw and Washer assemblies | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 6901 | ISO 10510 | | Tapping Screw and Washer assemblies | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-6901/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 6902 | din-6902 | ISO 10673 | Plain Washers for screw and washer assemblies | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 6902 | ISO 10673 | | Plain Washers for screw and washer assemblies | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-6902/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 6903 | din-6903 | ISO 10669 | Plain Washers for tapping screw and washer assemblies | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 6903 | ISO 10669 | | Plain Washers for tapping screw and washer assemblies | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-6903/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 6912 | din-6912 | null | Hexagon Socket Thin Head Cap Screws with pilot recess | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 6912 | | | Hexagon Socket Thin Head Cap Screws with pilot recess | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-6912/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 6914 | din-6914 | ISO 14399-4 | High-strength Hexagon Head Bolts with large widths across flats for structural steel bolting | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 6914 | ISO 14399-4 | | High-strength Hexagon Head Bolts with large widths across flats for structural steel bolting | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-6914/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 6916 | din-6916 | null | Round Washers for high-strength structural steel bolting | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 6916 | | | Round Washers for high-strength structural steel bolting | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-6916/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 6921 | din-6921 | DIN EN 1665 | Hex Head Bolts with Flange | https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners | Hex Head Bolts with Flange | DIN 6921 | DIN EN 1665 | Check spec | Flange OD/serrations/tolerance windows. | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-6921/ | [
"din_standard",
"interchangeability",
"iso_standard",
"part_description"
] | [
{
"field": "iso_standard",
"versions": [
{
"as_of": "2026-08-05T00:00:00",
"source": "https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners",
"source_quote": "Hex Head Bolts with Flange | DIN 6921 | DIN EN 1665 | Check spec | Flange OD/serrations/tolerance wind... | Check spec | null | null | null | null | null | null |
DIN 6922 | din-6922 | ISO 1665 | Hexagon Flange Bolts with reduced shank | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 6922 | ISO 1665 | | Hexagon Flange Bolts with reduced shank | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-6922/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 6923 | din-6923 | DIN EN 1661 | Hex Nut with Flange | https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners | Hex Nut with Flange | DIN 6923 | DIN EN 1661 | Check spec | Flange geometry/tolerance. | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-6923/ | [
"din_standard",
"interchangeability",
"iso_standard",
"part_description"
] | [
{
"field": "iso_standard",
"versions": [
{
"as_of": "2026-08-05T00:00:00",
"source": "https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners",
"source_quote": "Hex Nut with Flange | DIN 6923 | DIN EN 1661 | Check spec | Flange geometry/tolerance.",
"valu... | Check spec | null | null | null | null | null | null |
DIN 6924 | din-6924 | ISO 7040 | Prevailing torque type Hexagon Nuts with non-metallic insert | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 6924 | ISO 7040 | | Prevailing torque type Hexagon Nuts with non-metallic insert | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-6924/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 6925 | din-6925 | ISO 7042 | Prevailing torque type all-metal Hexagon Nuts | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 6925 | ISO 7042 | | Prevailing torque type all-metal Hexagon Nuts | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-6925/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 6926 | din-6926 | DIN EN 1663, 1666 | Prevailing Torque Flange Nut | https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners | Prevailing Torque Flange Nut | DIN 6926 | DIN EN 1663, 1666 | Check spec | Deformation style/serrations differ. | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-6926/ | [
"din_standard",
"interchangeability",
"iso_standard",
"part_description"
] | [
{
"field": "iso_standard",
"versions": [
{
"as_of": "2026-08-05T00:00:00",
"source": "https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners",
"source_quote": "Prevailing Torque Flange Nut | DIN 6926 | DIN EN 1663, 1666 | Check spec | Deformation style/serration... | Check spec | null | null | null | null | null | null |
DIN 6927 | din-6927 | DIN EN 1664, 1667 | Prevailing Torque Flange Nut | https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners | Prevailing Torque Flange Nut | DIN 6927 | DIN EN 1664, 1667 | Check spec | Variant series. | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-6927/ | [
"din_standard",
"interchangeability",
"iso_standard",
"part_description"
] | [
{
"field": "iso_standard",
"versions": [
{
"as_of": "2026-08-05T00:00:00",
"source": "https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners",
"source_quote": "Prevailing Torque Flange Nut | DIN 6927 | DIN EN 1664, 1667 | Check spec | Variant series.",
"... | Check spec | null | null | null | null | null | null |
DIN 7045 | din-7045 | null | Pan Head Screws with type H or type Z cross recess - product grade A | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 7045 | | | Pan Head Screws with type H or type Z cross recess - product grade A | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-7045/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 7337 | din-7337 | ISO 14589 | Break mandrel Blind Rivets | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 7337 | ISO 14589 | | Break mandrel Blind Rivets | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-7337/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 7343 | din-7343 | ISO 8750 | Spiral Pins; normal type | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 7343 | ISO 8750 | | Spiral Pins; normal type | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-7343/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 7344 | din-7344 | ISO 8748 | Spiral Pins; heavy duty type | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 7344 | ISO 8748 | | Spiral Pins; heavy duty type | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-7344/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 7346 | din-7346 | ISO 13337 | Spring-type Straight Pins; (roll pins) lightweight type | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 7346 | ISO 13337 | | Spring-type Straight Pins; (roll pins) lightweight type | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-7346/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 7349 | din-7349 | null | Plain Washers for Bolts with heavy clamping sleeves | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 7349 | | | Plain Washers for Bolts with heavy clamping sleeves | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-7349/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 7500-1 | din-7500-1 | ISO 7085 | Thread rolling Screws for metric ISO thread - Part 1: Types, designation, requirements | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 7500-1 | ISO 7085 | | Thread rolling Screws for metric ISO thread - Part 1: Types, designation, requirements | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-7500-1/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 7500-2 | din-7500-2 | null | Thread rolling Screws for ISO metric thread; guideline values for hole diameters | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 7500-2 | | | Thread rolling Screws for ISO metric thread; guideline values for hole diameters | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-7500-2/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 7504 | din-7504 | null | Self-drilling Screws with tapping screw thread - dimensions, requirements and testing | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 7504 | | | Self-drilling Screws with tapping screw thread - dimensions, requirements and testing | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-7504/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 7513 | din-7513 | null | Hexagon Head and slotted head thread cutting screws - dimensions, requirements and testing | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 7513 | | | Hexagon Head and slotted head thread cutting screws - dimensions, requirements and testing | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-7513/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 7516 | din-7516 | null | Cross recessed head thread cutting screws - dimensions, requirements and testing | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 7516 | | | Cross recessed head thread cutting screws - dimensions, requirements and testing | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-7516/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 7603 | din-7603 | null | Ring Seals and Gaskets | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 7603 | | | Ring Seals and Gaskets | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-7603/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 7970 | din-7970 | ISO 1478 | Threads and thread ends for tapping screws (modified version of ISO 1478) | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 7970 | ISO 1478 | | Threads and thread ends for tapping screws (modified version of ISO 1478) | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-7970/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 7971 | din-7971 | ISO 1481 | Slotted Pan Head Tapping Screws | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 7971 | ISO 1481 | BS4174 | Slotted Pan Head Tapping Screws | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-7971/ | [
"bs_standard",
"din_standard",
"iso_standard",
"part_description"
] | null | null | BS4174 | null | null | null | null | null |
DIN 7972 | din-7972 | ISO 1482 | Slotted Countersunk Head Tapping Screws | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 7972 | ISO 1482 | | Slotted Countersunk Head Tapping Screws | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-7972/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 7973 | din-7973 | ISO 1483 | Slotted Raised Countersunk Head Tapping Screws | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 7973 | ISO 1483 | | Slotted Raised Countersunk Head Tapping Screws | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-7973/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 7976 | din-7976 | ISO 1479 | Hex Head Self-Tapping Screws | https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners | Hex Head Self-Tapping Screws | DIN 7976 | ISO 1479 | Check spec | Point/thread form variations. | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-7976/ | [
"din_standard",
"interchangeability",
"iso_standard",
"part_description"
] | null | Check spec | null | null | null | null | null | null |
DIN 7977 | din-7977 | ISO 8737 | Taper Pins with thread ends and constant point lengths | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 7977 | ISO 8737 | | Taper Pins with thread ends and constant point lengths | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-7977/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 7978 | din-7978 | ISO 8736 | Taper Pins with internal thread | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 7978 | ISO 8736 | | Taper Pins with internal thread | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-7978/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 7979 | din-7979 | ISO 8733 | Parallel Pins with internal thread | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 7979 | ISO 8733 | | Parallel Pins with internal thread | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-7979/ | [
"din_standard",
"iso_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 7980 | din-7980 | null | Spring Lock Washers with square ends for cheese head screws | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 7980 | | BS4464A | Spring Lock Washers with square ends for cheese head screws | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-7980/ | [
"bs_standard",
"din_standard",
"part_description"
] | null | null | BS4464A | null | null | null | null | null |
DIN 7981 | din-7981 | ISO 7049 | Cross Recessed Pan Head Tapping | https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners | Cross Recessed Pan Head Tapping | DIN 7981 | ISO 7049 | Check spec | Head/point differences. | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-7981/ | [
"din_standard",
"interchangeability",
"iso_standard",
"part_description"
] | [
{
"field": "part_description",
"versions": [
{
"as_of": "2026-08-05T00:00:00",
"source": "https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners",
"source_quote": "Cross Recessed Pan Head Tapping | DIN 7981 | ISO 7049 | Check spec | Head/point differences.",
... | Check spec | null | null | null | null | null | null |
DIN 7982 | din-7982 | ISO 7050 | Cross Recessed Flat Head Tapping | https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners | Cross Recessed Flat Head Tapping | DIN 7982 | ISO 7050 | Check spec | Countersink/head angle. | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-7982/ | [
"din_standard",
"interchangeability",
"iso_standard",
"part_description"
] | [
{
"field": "part_description",
"versions": [
{
"as_of": "2026-08-05T00:00:00",
"source": "https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners",
"source_quote": "Cross Recessed Flat Head Tapping | DIN 7982 | ISO 7050 | Check spec | Countersink/head angle.",
... | Check spec | null | null | null | null | null | null |
DIN 7983 | din-7983 | ISO 7051 | Cross Recessed Raised Countersunk Tapping | https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners | Cross Recessed Raised Countersunk Tapping | DIN 7983 | ISO 7051 | Check spec | Raised profile tolerance. | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-7983/ | [
"din_standard",
"interchangeability",
"iso_standard",
"part_description"
] | [
{
"field": "part_description",
"versions": [
{
"as_of": "2026-08-05T00:00:00",
"source": "https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners",
"source_quote": "Cross Recessed Raised Countersunk Tapping | DIN 7983 | ISO 7051 | Check spec | Raised profile tole... | Check spec | null | null | null | null | null | null |
DIN 7984 | din-7984 | null | Hexagon Socket Thin Head Cap Screws | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 7984 | | | Hexagon Socket Thin Head Cap Screws | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-7984/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 7985 | din-7985 | ISO 7045 | Cross Recessed Pan Head Screw | https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners | Cross Recessed Pan Head Screw | DIN 7985 | ISO 7045 | Fully interchangeable | General-purpose pan head. | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-7985/ | [
"din_standard",
"interchangeability",
"iso_standard",
"part_description"
] | [
{
"field": "part_description",
"versions": [
{
"as_of": "2026-08-05T00:00:00",
"source": "https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners",
"source_quote": "Cross Recessed Pan Head Screw | DIN 7985 | ISO 7045 | Fully interchangeable | General-purpose pan ... | Fully interchangeable | null | [
{
"as_of": "2026-08-05T00:00:00",
"field": "bs_standard",
"source": "https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards",
"source_quote": "DIN 7985 | ISO 7045 | BS4183 | Cross recessed raised Phillips Pan Head Screws |",
"value": "BS4183"
}
] | null | null | null | null |
DIN 7989-1 | din-7989-1 | null | Washers for steel structures - product grade C | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 7989-1 | | | Washers for steel structures - product grade C | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-7989-1/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
DIN 7989-2 | din-7989-2 | null | Washers for steel structures - product grade A | https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards | DIN 7989-2 | | | Washers for steel structures - product grade A | | https://referencesource.org/fastener-standard-interchangeability-exceptions/din-7989-2/ | [
"din_standard",
"part_description"
] | null | null | null | null | null | null | null | null |
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