Crinkle, Internal Tooth, Plain Washer, Full Washers, Form A
Ceramic, A2/304 Stainless Steel, Fibre, Brass, TPE
37 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
4.85 mm, 14 mm, 2.25 mm, 13 mm, 6.5 mm
0.7 mm, 0.3 mm, 1.2 mm, 0.28 mm, 8.1 mm
M3 (Form A), M12, M8, M24, M5 (Form A)
DIN 7980, BS 4320G, DIN 7603A, DIN 125A, BS 4320B