External Tooth, Lock Washer, Plain Washer, Full Washers, Form A
Nylon, 301 Stainless Steel, TPE, Copper, Brass
4.51 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
2.6 mm, 4.85 mm, 17 mm, 2.25 mm, 6.5 mm
8.1 mm, 1.1 mm, 2.5 mm, 0.8 mm, 0.16 mm
M3 (Form A), M24, M5 (Form A), M16, M6
BS 4320, BS 4320G, ASTM F436, ASME B18.8.1, BS 4320B