Tee nuts (T-nuts) for wood, 3 and 4 prong, 4-40 to 3/8-16: barrel, flange, prong height, drill size + hole gauge — dimension sheet Source: Xem Studio, https://xemstudio.com/objects/tee-nuts-for-wood-3-4-prong/ (sheet CC BY 4.0) Basis: AFT Fasteners' 4-prong table and Tanner Bolt & Nut's 3- and 4-prong table (they agree on every 4-prong row read), McFeely's stainless and UltraGrip tee nut sizes; one hole-gauge file Catalog version: 2026-10-20 Overall (mm): length 117.0, width 19.5, height 3.0 - Inches. The letters are the makers': H barrel height (length), G flange diameter, F barrel diameter, A prong height and T 'material thickness' (the sheet the nut is made of; the sheets do not say it is the flange thickness, so it is shown under their name). Drill size is the makers' installation hole. AFT and Tanner say there is no single standard for tee nuts and that these values are a guide; Tanner's tolerances are H and G ±1/32, F and T ±.015, A ±1/32 (inch). Material is C1004-10 low-carbon steel (AFT). - AFT's 4-prong table and Tanner's agree on every 4-prong row read. Tanner also lists the 3-prong style (used in harder materials to limit splitting; 4-prong in hard or soft woods) and 4-40 sizes. A few rows have two values in the source: 5/16-18 × 5/8 four-prong is .375–.390 barrel, 1/4–5/16 prong height, .060–.063 T and 3/8 or 25/64 drill; 1/4-20 × 1/2 three-prong prong height is 7/32–1/4. Tanner's 5/16-18 × 1/2 3-prong is .360 / 3/8 where its 4-prong is .390 / 13/32; those are as printed. - McFeely's stainless tee nuts: barrel height 9/32 for 10-24, 3/8 for 1/4-20, 1/2 for 5/16-18 and 7/16 for 3/8-16, base diameter 3/4, 3/4, 7/8 and 1 in, and 4 prongs. Its drill sizes carry an asterisk with no footnote ('test on scrap'). Its UltraGrip rows print values that do not read consistently (for example a 5/8 in height against a 5/16 in barrel) and are not tabulated. - Files: one hole gauge, a plate with holes at the nine published drill sizes (13/64 to 29/64 in). Plate thickness, spacing and corner radius are Xem's choices. No tee nut model is drawn: the number of prongs and their width and shape are not published as numbers in the sheets read, only their height. - Metric tee nuts (M6, M8) were not found in a source with checkable dimensions, so none are shown. Hammer-in / knock-in inserts are sold by McMaster-Carr with per-part STEP; its tee-nut-insert page is linked, not copied. style / source thread H barrel height (in) G flange diameter (in) F barrel diameter (in) A prong height (in) T material thickness (in) drill size (in) 4-prong (AFT; Tanner agrees) 6-32 1/4 1/2 .188 1/8 .035 13/64 4-prong (AFT; Tanner agrees) 8-32 1/4 23/32 .208 3/16 .031 7/32 4-prong (AFT; Tanner agrees) 8-32 5/16 3/4 .208 1/4 .035 7/32 4-prong (AFT; Tanner agrees) 8-32 3/8 3/4 .208 1/4 .035 7/32 4-prong (AFT; Tanner agrees) 8-32 7/16 3/4 .208 1/4 .035 7/32 4-prong (AFT; Tanner agrees) 10-24 5/16 3/4 .243 7/32 .040 1/4 4-prong (AFT; Tanner agrees) 10-24 7/16 23/32 .243 7/32 .040 1/4 4-prong (AFT; Tanner agrees) 10-32 5/16 3/4 .243 7/32 .040 1/4 4-prong (AFT; Tanner agrees) 10-32 3/8 3/4 .243 1/4 .043 1/4 4-prong (AFT; Tanner agrees) 10-32 7/16 3/4 .243 7/32 .043 1/4 4-prong (AFT; Tanner agrees) 1/4-20 1/4 3/4 .305 7/32 .047 5/16 4-prong (AFT; Tanner agrees) 1/4-20 5/16 3/4 .305 7/32 .047 5/16 4-prong (AFT; Tanner agrees) 1/4-20 3/8 3/4 .305 7/32 .047 5/16 4-prong (AFT; Tanner agrees) 1/4-20 7/16 3/4 .305 1/4 .047 5/16 4-prong (AFT; Tanner agrees) 1/4-20 1/2 3/4 .305 7/32 .047 5/16 4-prong (AFT; Tanner agrees) 1/4-20 9/16 3/4 .305 1/4 .047 5/16 4-prong (AFT; Tanner agrees) 1/4-20 5/8 3/4 .306 1/4 .047 5/16 4-prong (AFT; Tanner agrees) 5/16-18 5/16 7/8 .360 9/32 .047 3/8 4-prong (AFT; Tanner agrees) 5/16-18 3/8 7/8 .390 1/4 .063 25/64 4-prong (AFT; Tanner agrees) 5/16-18 7/16 7/8 .360 1/4 .047 3/8 4-prong (AFT; Tanner agrees) 5/16-18 1/2 7/8 .390 1/4 .063 13/32 4-prong (AFT; Tanner agrees) 5/16-18 5/8 7/8 .375–.390 1/4–5/16 .060–.063 3/8 or 25/64 4-prong (AFT; Tanner agrees) 3/8-16 5/16 1 .440 9/32 .063 27/64 4-prong (AFT; Tanner agrees) 3/8-16 7/16 1 .440 11/32 .063 29/64 4-prong (AFT; Tanner agrees) 3/8-16 5/8 1 .440 5/16 .063 29/64 3-prong (Tanner) 4-40 1/8 23/64 .130 3/32 .024 9/64 3-prong (Tanner) 4-40 1/4 23/64 .141 3/32 .031 9/64 3-prong (Tanner) 6-32 1/4 1/2 .188 1/8 .035 13/64 3-prong (Tanner) 8-32 1/4 23/32 .208 7/32 .030 7/32 3-prong (Tanner) 8-32 5/16 3/4 .208 1/4 .035 7/32 3-prong (Tanner) 10-24 1/4 3/4 .243 5/32 .039 1/4 3-prong (Tanner) 10-24 5/16 3/4 .243 7/32 .040 1/4 3-prong (Tanner) 10-24 7/16 3/4 .243 5/16 .040 1/4 3-prong (Tanner) 10-32 5/16 3/4 .243 7/32 .040 1/4 3-prong (Tanner) 10-32 3/8 3/4 .243 1/4 .040 1/4 3-prong (Tanner) 10-32 7/16 3/4 .243 5/16 .040 1/4 3-prong (Tanner) 1/4-20 1/4 3/4 .305 3/16 .047 5/16 3-prong (Tanner) 1/4-20 5/16 3/4 .305 7/32 .047 5/16 3-prong (Tanner) 1/4-20 3/8 3/4 .305 1/4 .047 5/16 3-prong (Tanner) 1/4-20 7/16 3/4 .305 5/16 .047 5/16 3-prong (Tanner) 1/4-20 1/2 3/4 .305 7/32–1/4 .047 5/16 3-prong (Tanner) 1/4-20 9/16 3/4 .305 7/32 .047 5/16 3-prong (Tanner) 5/16-18 5/16 7/8 .360 9/32 .047 3/8 3-prong (Tanner) 5/16-18 3/8 7/8 .390 1/4 .063 25/64 3-prong (Tanner) 5/16-18 7/16 7/8 .390 1/4 .063 13/32 3-prong (Tanner) 5/16-18 1/2 7/8 .360 1/4 .063 3/8 3-prong (Tanner) 5/16-18 5/8 7/8 .390 5/16 .063 25/64 3-prong (Tanner) 3/8-16 5/16 1 .420 9/32 .063 27/64 3-prong (Tanner) 3/8-16 7/16 1 .440 11/32 .063 29/64 3-prong (Tanner) 3/8-16 5/8 1 .440 9/32 .063 29/64 4-prong 18-8 stainless (McFeely's) 10-24 9/32 3/4 .227–.232 13/64 — 15/64 4-prong 18-8 stainless (McFeely's) 1/4-20 3/8 3/4 .306–.311 13/64 — 5/16 4-prong 18-8 stainless (McFeely's) 5/16-18 1/2 7/8 .386–.391 17/64 — 13/32 4-prong 18-8 stainless (McFeely's) 3/8-16 7/16 1 .466–.471 21/64 — 31/64 Files elsewhere (not hosted by Xem Studio; license as stated by the publisher): - AFT Fasteners: 4-prong T-nuts, straight barrel: thread, (H) barrel height, (G) flange diameter, (F) barrel diameter, (A) prong height, (T) material thickness, drill size; 6-32 to 3/8-16 — web — Distributor technical table; numbers only. Says there is no single standard for T-nuts — https://www.aftfasteners.com/4-prong-t-nuts-straight-barrel-technical-information/ - Tanner Bolt & Nut (sheet hosted on a Shopify CDN): Nuts, tee: 3-prong and 4-prong T-nuts, straight barrel, H, G, F, A, T and drill size by part number; tolerances H, G ±1/32, F, T ±.015, A ±1/32 — web — Maker / distributor data sheet; numbers only — https://cdn2.shopify.com/s/files/1/0056/7856/3437/files/Nutstee.pdf - McFeely's: T-nuts (tee nuts) dimensions and drill sizes: 18-8 stainless tee nuts and UltraGrip T-nuts, barrel height, barrel diameter, base diameter, prong height, drill size — web — Distributor technical page; numbers only — https://www.mcfeelys.com/threaded_insert_and_t-nut_technical_information - McMaster-Carr: Tee-nut inserts for wood (free STEP/IGES per part, for your own design use; no redistribution) — STEP, IGES, PDF — McMaster-Carr site terms: personal design use, no redistribution [verify license at link] — https://www.mcmaster.com/tee-nut-inserts/ Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/tee-nuts-for-wood-3-4-prong/index.json API: https://xemstudio.com/api/geometry?object=tee-nuts-for-wood-3-4-prong