Xem Studiomeasured geometry

Library › Hardware › Large (fender) washers, DIN 9021 / ISO 7093: M2.5–M36 bore, outside…

M12 DIN 9021 large washer at nominal size

M12 DIN 9021 large washer at nominal size: bore Ø13 (d1 nom = min), outside Ø37 (d2 nom = max), thickness 3 mm (h nom); plain flat annulus, no edge radius

Exact dimensions. True size, no tolerance added. Threads are plain cylinders at the major diameter.

STEP STL free, CC BY 4.0 (credit "Xem Studio")

Let your AI pull this. Add https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.
Set it up →

From the full sheet

Large (fender) washers, DIN 9021 / ISO 7093: M2.5–M36 bore, outside diameter, thickness + nylon variant + 8 washer files: every size, notes, mating features and sources. What are the dimensions of a DIN 9021 large washer, and what size is an M8 fender washer?

Other sizes