Internal Tooth, Cup, Plain Washer, Full Washers, Form A
Steel, Brass, Fibre, TPE, Nylon
3/4" X 3" X 1/4", 7.99 mm, 15.5 mm, 6.9 mm, 11.88 mm
4.85 mm, 17 mm, 3.2 mm, 4.36 mm, 6.5 mm
1.2 mm, 0.28 mm, 8.1 mm, 2.5 mm, 1.1 mm
M20, M24, M5 (Form A), M6, M3
DIN 6798J, ASME B18.21.1, ASME B18.8.1, ASME B18.22.1
ASTM F844, BS 4320B