Internal Tooth, Plain Washer, Crinkle, Full Washers, Form A
Fibre, Stainless Steel, Steel, TPE, Nylon
3/4" X 3" X 1/4", 7.99 mm, 15.5 mm, 6.9 mm, 11.88 mm
12.2 mm, 16.2 mm, 5.3 mm, 2.25 mm, 6.5 mm
0.28 mm, 1.6 mm, 2.5 mm, 0.3 mm, 0.16 mm
M5, M3 (Form A), M20, M5 (Form A), M4
ASME B18.22.1
ASTM F844, BS 4320:1968, DIN 127B, BS 4320B, DIN 7603A