Internal Tooth, External Tooth, Plain Washer, Full Washers, Form A
Fibre, Steel, Brass, Vulcanised Fibre, TPE
3/4" X 3" X 1/4", 7.99 mm, 15.5 mm, 6.9 mm, 11.88 mm
3 mm, 16.2 mm, 2.25 mm, 4.36 mm, 6.5 mm
2 mm, 1.1 mm, 3.5 mm, 0.3 mm, 2.5 mm
M3, M3 (Form A), M16, M24, M5 (Form A)
BS 4320, DIN 6797A, BS 4320B, BS 4320G, ASME B18.22.1
ASTM F844