Cup, Internal Tooth, Full Washers, Flat Washers, Form A
Steel, Stainless Steel, Copper, TPE, Nylon
5/16", 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
17 mm, 2.1 mm, 11 mm, 2.25 mm, 6.5 mm
1 mm, 0.5 mm, 8.1 mm, 1.6 mm, 2 mm
M2, M5 (Form A), M5, M12, M3
DIN 7980, DIN 127B, DIN 125A, DIN 7603A, BS 4320B