Xem Studiomeasured geometry

Library › Cameras & lenses › Lens filter threads: M40.5 × 0.5 to M112, pitch table and thread rings

M46 × 0.75 filter external thread ring section

M46 × 0.75 filter external thread ring section: ISO 68-1 basic profile, major Ø46, pitch Ø45.513, minor Ø45.188, pitch 0.75; 6 long (8 turns), bore Ø41.188 (wall is a design choice); exact nominal, no tolerance

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

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

Dimensions

threadM46 × 0.75
major Ø D (mm)46
pitch P (mm)0.75
pitch Ø D2 (mm)45.513
minor Ø D1 (mm)45.188
thread depth 5H/8 (mm)0.406
pitch fromMarumi · Nikon lists P = 0.75
filesmale + female rings
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From the full sheet

Lens filter threads: M40.5 × 0.5 to M112, pitch table and thread rings: every size, notes, mating features and sources. What thread pitch is a 67 mm (or 52, 77, 82 mm) lens filter?

Other sizes