Internal Tooth, Crinkle, Full Washers, Form A, Flat Washers
Fibre, Steel, TPE, Nylon, Copper
3/4" X 3" X 1/4", 7.99 mm, 15.5 mm, 6.9 mm, 11.88 mm
12.2 mm, 5.36 mm, 2.25 mm, 13 mm, 6.5 mm
1.8 mm, 0.28 mm, 8.1 mm, 1.6 mm, 2.5 mm
DIN 7980, ASME B18.22.1
ASTM F844, BS 4320B, DIN 7603A, BS 4320