Cup, Plain Washer, Spring, Full Washers, Form A
Brass, Fibre, Stainless Steel, TPE, Nylon
28 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
4.85 mm, 5.3 mm, 14 mm, 4.36 mm, 6.5 mm
8.1 mm, 2.5 mm, 3 mm, 1 mm, 0.8 mm
M12, M16, M5 (Form A), M4, M2.5
DIN 127B, BS 4463, BS 4320B, DIN 125A, DIN 7603A