Lens filter threads: M40.5 × 0.5 to M112, pitch table and thread rings — dimension sheet Source: Xem Studio, https://xemstudio.com/objects/lens-filter-threads/ (sheet CC BY 4.0) Basis: Diameter/pitch from Marumi's published filter thread table, cross-checked with Nikon's 'P = 0.75 mm' lens specs; profile from ISO 68-1 (IS 4218-1, identical) Catalog version: 2026-10-20 Sizes: see table below - Screw-in lens filters, step rings, lens caps, hoods and filter holders use a fine metric thread at the front of the lens: the lens has the internal (female) thread, the filter's rear has the external (male) thread and the filter's front repeats the female one. - Diameter and pitch: Marumi's published thread table (it states that its filters follow the ISO standard values). It gives 0.5 mm pitch up to 40.5 mm, 0.75 mm from 43 to 82 mm and 1.0 mm from 86 mm up. Nikon's own lens specifications state P = 0.75 mm for 46, 62, 67, 72, 77 and 82 mm, agreeing with that table. - The 'rule' is a convention, not a law: Nikon lists its NIKKOR Z 14-24mm f/2.8 S at 112 mm with P = 0.75 mm, where Marumi's table gives 1.0 mm. Check the pitch your lens maker states (often written 'P = 0.75 mm') before cutting a 112 mm part. 112 mm is not drawn. - 37 mm, 39 mm and 105 mm filters exist but are not in the table I could source, so they are not listed here. - Pitch Ø, minor Ø and thread depth are computed from the ISO 68-1 basic profile (60°, H = 0.866025 P, depth 5H/8, D2 = D − 0.649519 P, D1 = D − 1.082532 P). - Files: for 14 common sizes, a male ring and a female ring 8 turns long, drawn exactly at the basic profile (maximum material, no tolerance, flat crest P/8 and root P/4, right hand). Union the male ring onto a cap, hood or adapter, or subtract the male ring from your part to make a female thread; add your own process allowance on the flanks. Ring walls (2 mm) and length are a design choice. - Marumi's table also lists a 'basic size' column that it does not explain, and tolerances for its own threads; neither is used here. thread major Ø D (mm) pitch P (mm) pitch Ø D2 (mm) minor Ø D1 (mm) thread depth 5H/8 (mm) pitch from files M40.5 × 0.5 40.5 0.5 40.175 39.959 0.271 Marumi male + female rings M43 × 0.75 43 0.75 42.513 42.188 0.406 Marumi male + female rings M46 × 0.75 46 0.75 45.513 45.188 0.406 Marumi · Nikon lists P = 0.75 male + female rings M49 × 0.75 49 0.75 48.513 48.188 0.406 Marumi male + female rings M52 × 0.75 52 0.75 51.513 51.188 0.406 Marumi male + female rings M55 × 0.75 55 0.75 54.513 54.188 0.406 Marumi male + female rings M58 × 0.75 58 0.75 57.513 57.188 0.406 Marumi male + female rings M60 × 0.75 60 0.75 59.513 59.188 0.406 Marumi — M62 × 0.75 62 0.75 61.513 61.188 0.406 Marumi · Nikon lists P = 0.75 male + female rings M67 × 0.75 67 0.75 66.513 66.188 0.406 Marumi · Nikon lists P = 0.75 male + female rings M72 × 0.75 72 0.75 71.513 71.188 0.406 Marumi · Nikon lists P = 0.75 male + female rings M77 × 0.75 77 0.75 76.513 76.188 0.406 Marumi · Nikon lists P = 0.75 male + female rings M82 × 0.75 82 0.75 81.513 81.188 0.406 Marumi · Nikon lists P = 0.75 male + female rings M86 × 1 86 1 85.350 84.917 0.541 Marumi male + female rings M95 × 1 95 1 94.350 93.917 0.541 Marumi male + female rings M100 × 1 100 1 99.350 98.917 0.541 Marumi — M112 × 1 112 1 111.350 110.917 0.541 Marumi: 1.0 · Nikon (Z 14-24 f/2.8 S): 0.75 — sources differ — Files elsewhere (not hosted by Xem Studio; license as stated by the publisher): - Marumi: FAQ: thread pitch — filter screw thread major diameter and pitch table (13.5 to 122 mm) — web — Publisher's page; dimensions are facts — https://marumi-global.com/blogs/technology/faq-thread-pitch - Nikon: NIKKOR Z lens brochure: filter-attachment size with pitch (P = 0.75 mm) — web — Publisher's page; dimensions are facts — https://cdn-4.nikon-cdn.com/e/Q5NM96RZZo-RRZZFeeMiveET0gpU-PYm90DZMEpjBfZRR51BYn9b4sjxcCuc2_t9Tr8iw3d-qf0=/Misc/NIKKOR-Z-Brochure.pdf - Nikon: NIKKOR Z DX 16-50mm f/3.5-6.3 VR specifications: filter-attachment size 46 mm (P = 0.75 mm) — web — Publisher's page; dimensions are facts — https://imaging.nikon.com/imaging/lineup/lens/z-mount/z_dx_16-50mmf35-63_vr/ - Nikon: NIKKOR Z 14-24mm f/2.8 S specifications: filter-attachment size 112 mm (P = 0.75 mm) — web — Publisher's page; dimensions are facts — https://imaging.nikon.com/imaging/lineup/lens/z-mount/z_14-24mmf28s/ - Bureau of Indian Standards (via Public.Resource.Org): IS 4218 (Part 1):2001 ISO general purpose metric screw threads, basic profile (identical with ISO 68-1:1998): H = 0.866025404 P, 5H/8 = 0.541265877 P, 3H/8 = 0.324759526 P — web — Public.Resource.Org (public law); dimensions are facts — https://law.resource.org/pub/in/bis/S01/is.4218.1.2001.pdf - ISO: ISO 68-1:1998 ISO general purpose screw threads — Basic profile — Part 1: Metric screw threads — web — Publisher's page; dimensions are facts — https://www.iso.org/standard/3707.html Free files (CC BY 4.0, Xem Studio; STEP + STL, 28 parts): https://xemstudio.com/files/hardware/lens-filter-threads/index.json API: https://xemstudio.com/api/geometry?object=lens-filter-threads