Cup, Internal Tooth, Crinkle, Full Washers, Form A
Nylon, TPE, Vulcanised Fibre, Stainless Steel, Brass
4.51 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
4.85 mm, 10.5 mm, 2.1 mm, 5.3 mm, 6.5 mm
1.2 mm, 1.8 mm, 8.1 mm, 1.1 mm, 2.2 mm
M2, M5 (Form A), M12, M4, M3
BS 4320:1968, BS 4320G, DIN 125A, BS 4320, ASME B18.8.1