Cup, Mudguard, Lock Washer, Full Washers, Form A
Fibre, Brass, 301 Stainless Steel, Steel, TPE
37 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
6 mm, 2.1 mm, 12.2 mm, 13 mm, 6.5 mm
1.6 mm, 1.1 mm, 2.5 mm, 0.3 mm, 0.16 mm
M20, M3, M6, M2, M5 (Form A)
ASME B18.22.1
ASTM F844, DIN 125A, DIN 6797A, BS 4320B, DIN 6797J