Internal Tooth, Lock Washer, Cup, Full Washers, Form A
Fibre, Brass, Steel, TPE, Ceramic
7.99 mm, 15.5 mm, 12 mm, 6.9 mm, 11.88 mm
4.85 mm, 2.1 mm, 13 mm, 3.2 mm, 6.5 mm
0.5 mm, 0.6 mm, 1.5 mm, 2 mm, 0.28 mm
M3 (Form A), M20, M5 (Form A), M12, M3
BS 4320B, DIN 6797J, ASME B18.22.1
ASTM F844, BS 4320, DIN 7980