External Tooth, Crinkle, Lock Washer, Full Washers, Form A
Fibre, TPE, Ceramic, Stainless Steel, Steel
37 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
17 mm, 4.85 mm, 12.2 mm, 5.36 mm, 6.5 mm
1.45 mm, 1.4 mm, 5.8 mm, 1.2 mm, 0.6 mm
M5 (Form A), M2.5, M3, M5, M8
BS 4463, ASME B18.21.1, ASTM F436, DIN 6797J, BS 4320B