Spline 18 × 10 × 3 mm

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	spline
value	3 mm thick, 18 mm along the mitre, 10 mm across it, hidden inside

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From the full sheet

Splined mitre joint (hidden spline): every size, notes, mating features and sources. How big is the spline in a mitre joint?

Other sizes

Mitred member A with a spline slot
Mitred member B with a spline slot
All parts in their assembled position (each part its own solid)