DIN 9021 Washers, outside diameter about 3 x thread
ReplacedNo longer current. Use the replacement shown.
- Edition
- DIN 9021:1990-03
- Publisher
- DIN
- Part family
- Fasteners & threads
- Reviewed
- 27 October 2026 · source checked
- Use instead
- ISO 7093-1
Is DIN 9021 still current?
No, it has been replaced. DIN 9021 has been replaced by ISO 7093-1 (MechAtlas review: 27 October 2026). Use the replacement for new work, and check differences before interchanging parts.
What it covers
Former German large washer standard.
Before you interchange parts
- DIN 9021 → ISO 7093-1 / EN ISO 7093-1 (stated by catalogue): Catalogue prints ISO 7093.
Parts that use DIN 9021
- Flat washer (Germany (DIN), old)
Thin flat ring placed under a nut or bolt head to spread load and protect the surface.
Withdrawn; outside dia. about 3 x thread. Replaced by ISO 7093-1/-2.
Official source
MechAtlas does not reproduce standards. Check the official edition at the publisher's page for DIN 9021 or the DIN store.
Open in MechAtlasCheck a drawing callout
Other fasteners & threads standards
- DIN 125-1 Replaced
Washers, product grade A, up to 250 HV - DIN 1481 Replaced
Heavy spring pins (old) - DIN 2999-1 Replaced
Whitworth pipe threads (old) - DIN 6325 Replaced
Hardened parallel pins m6 (old) - DIN 6914 Replaced
HV hex bolts for steel structures (old) - DIN 7 Replaced
Parallel pins (old) - DIN 7337 Replaced
Break mandrel blind rivets (old) - DIN 7991 Replaced
Hexagon socket countersunk head screws - DIN 912 Replaced
Hexagon socket head cap screws (ISO 4762 modified) - DIN 913 Replaced
Hexagon socket set screws, flat point (ISO 4026 modified) - DIN 916 Replaced
Hexagon socket set screws, cup point (ISO 4029 modified) - DIN 931-1 Replaced
Hexagon head bolts with shank (ISO 4014 modified)