Cup, Mudguard, Lock Washer, Full Washers, Form A
Fibre, Vulcanised Fibre, TPE, Copper, Brass
37 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
4.85 mm, 16.2 mm, 2.25 mm, 13 mm, 6.5 mm
1.8 mm, 0.4 mm, 1.6 mm, 3.5 mm, 0.16 mm
M2.5, M3 (Form A), M16, M20, M5 (Form A)
ASME B18.8.1, ASME B18.22.1
ASTM F844, BS 4320B, DIN 7603A, BS 4463