Xem Studiomeasured geometry

Library › Hardware › Shim rings, DIN 988: 3×6 to 50×63 bore and outside diameter…

DIN 988 4×8×1.0

DIN 988 4×8×1.0

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

Shim rings, DIN 988: 3×6 to 50×63 bore and outside diameter, standard thicknesses: every size, notes, mating features and sources. What bore and outside diameter sizes and thicknesses does a DIN 988 shim ring come in?

Other sizes