Lug nuts and wheel bolts: thread sizes (M12x1.5, M12x1.25, M14x1.5, 1/2-20, 9/16-18), seat types (60° cone, ball R12 to R14, flat with washer) and hex sizes (17, 19, 21 mm, 13/16, 3/4 in)

sizes

19 in table

Notes

• A lug nut or wheel bolt is defined by four things: thread, seat, hex and length. The thread has to match the stud or hub, the seat has to match the wheel, the hex has to match your socket; length depends on wheel thickness and thread engagement. The nut or bolt must also match the pattern on the wheel (see wheel-bolt-patterns-pcd-lug-patterns).
• Where the sources disagree: the inch 9/16 thread is 9/16-18 in McGard's catalogue, motorverso and trailer hub listings, and 9/16-20 in Wikipedia. Wikipedia also calls 13/16 in a less common hex, while motorverso and McGard treat it as the standard inch match to 21 mm. 13/16 in is 20.64 mm, so a 21 mm socket fits but is not the same size; 3/4 in is 19.05 mm against 19 mm.
• Thread major diameters are the nominal designation (M12 = 12.0 mm; 1/2 in = 12.7 mm); pitches are the second number. No tolerance classes or thread forms were read, and wheel-seat angle tolerances are not published in the sources; use the wheel maker's data.
• Lug nut lengths are product-specific: Dorman 611-183 (M12-1.50, 19 mm hex) is 0.831 in (21.1 mm) overall and McGard 69432 (M14x1.5, 13/16 hex) is 1.945 in (49.4 mm); the cone, bulge and hub-cap profiles are not given as numbers, so no nut or bolt models are published.
• Torque: the sources read do not give general values (Wikipedia: vehicle and wheel maker values apply; wheel-sizes.com prints per-vehicle torque on some pages, 131 Nm for the Toyota Tundra and 133 Nm for the Nissan Titan, which are not repeated as rules). Use the vehicle's manual.
• Files: none; this page is numbers only. McGard's catalogue is the maker's listing used for the thread and hex sizes; the maker's own CAD was not found.

Lug nuts and wheel bolts: thread sizes (M12x1.5, M12x1.25, M14x1.5… size chart

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

Xem scan

File coming

No downloadable true-size file yet: the published figures do not fix the whole shape, and Xem never guesses a number. A measured scan is planned; request it and it moves up.

Plain text: sheet.txt · JSON: /api/geometry?object=lug-nuts-and-wheel-bolts

Fits with

Free

Wheel bolt patterns (PCD and lug count): 4x100, 5x114.3, 5x120, 6x139.7, 8x6.5 and more, with makes, hub bore, stud thread + 15 hole-pattern templates210.0×210.0×6.0 mm★ sheetFree

Hex nuts, M2–M8 (ISO 4032)7 sizes★ 7 filesFree

Hex nuts, inch: #4-40 to 3/4-10 (ASME B18.2.2)12 sizes★ 12 filesFree

Thread size reference: UNC / UNF and ISO metric coarse / fine — major, minor and pitch diameter, tap drill, clearance hole (close, normal, loose)201 sizes★ sheetFree

Hex flange nuts, DIN 6923: M3–M20 across flats, flange diameter, height, flange thickness + M5–M16 envelope files34.5×34.5×16.0 mm★ 6 filesFree

Nylon-insert lock nuts (nyloc), ISO 7040 and DIN 985, M3–M36: width across flats, height, bearing diameter + M10–M30 envelope files30.0×26.0×22.8 mm★ 6 files