Plain Washer, Internal Tooth, Mudguard, Full Washers, Form A
Brass, Stainless Steel, TPE, Copper, Nylon
28 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
13 mm, 8.4 mm, 5.36 mm, 2.25 mm, 6.5 mm
3.5 mm, 0.28 mm, 8.1 mm, 1.5 mm, 2.5 mm
M2, M5 (Form A), M5, M20, M2.5
ASTM F436, DIN 6797A, BS 4320, ASME B18.21.1, BS 4320B