Internal Tooth, Cup, Plain Washer, Full Washers, Form A
Steel, Nylon, Brass, TPE, Vulcanised Fibre
3/4" X 3" X 1/4", 7.99 mm, 15.5 mm, 6.9 mm, 11.88 mm
5.3 mm, 3 mm, 2.25 mm, 17 mm, 6.5 mm
1.5 mm, 0.5 mm, 8.1 mm, 1.2 mm, 2 mm
M2, M5 (Form A), M12, M20, M10
DIN 6797A, DIN 7603A, BS 4320G, BS 4320B, BS 4463