M2 hex nut, 4 AF × 1.6

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	nut
value	ISO 4032 M2: 4 mm AF, 1.6 mm thick

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From the full sheet

M2 nut trap (hex pocket for an ISO 4032 nut): every size, notes, mating features and sources. What size is an M2 nut trap?

Other sizes

Block with a 4 mm hex pocket, 1.6 mm deep, and a Ø2 screw hole
All parts in their assembled position (each part its own solid)