Internal Tooth, Crinkle, Cup, Full Washers, Form A
Neoprene, Brass, Fibre, TPE, Copper
15.5 mm, 12 mm, 6.9 mm, 20 mm, 11.88 mm
3.2 mm, 12.2 mm, 13 mm, 5.36 mm, 6.5 mm
1.8 mm, 0.6 mm, 8.1 mm, 1.5 mm, 0.28 mm
M6 (Form A), M3.5, M3 (Form A), M5 (Form A), M2
DIN 127B, DIN 6797A, BS 4320B, BS 4320, ASME B18.22.1
ASTM F844