Cup, Mudguard, Spring, Full Washers, Form A
Fibre, Ceramic, Brass, TPE, Stainless Steel
28 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
4.36 mm, 2.6 mm, 4.85 mm, 2.25 mm, 6.5 mm
1.8 mm, 3.5 mm, 0.5 mm, 2.5 mm, 2 mm
M6, M5 (Form A), M2, M2.5, M3
ASME B18.22.1
ASTM F844, BS 4320, ASME B18.8.1, DIN 6797J, BS 4320B