Square key (komisen) 6 × 6 × 32 mm, proud 6 mm both faces

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

STEP STL free, Xem Studio Design License — Xem Studio

Dimensions

dimension	key
value	6 × 6 mm through the centre of the scarf

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From the full sheet

Kanawa tsugi (keyed hooked splice): every size, notes, mating features and sources. How does a kanawa tsugi joint work?

Other sizes

Member A
Member B
All parts in their assembled position (each part its own solid)