Internal Tooth, Cup, Plain Washer, Full Washers, Form A
301 Stainless Steel, Vulcanised Fibre, Steel, TPE, Copper
7.99 mm, 15.5 mm, 12 mm, 6.9 mm, 11.88 mm
11 mm, 12.2 mm, 12.5 mm, 4.36 mm, 6.5 mm
1.8 mm, 2.5 mm, 3.5 mm, 3 mm, 0.28 mm
M3 (Form A), M20, M24, M3, M5 (Form A)
DIN 6798J, BS 4320, ASME B18.8.1, BS 4320B, DIN 7980