Internal Tooth, Plain Washer, Crinkle, Full Washers, Form A
Copper, Vulcanised Fibre, Brass, TPE, Stainless Steel
3/4" X 3" X 1/4", 7.99 mm, 15.5 mm, 6.9 mm, 11.88 mm
12.2 mm, 25 mm, 16.2 mm, 2.25 mm, 6.5 mm
1.8 mm, 3.5 mm, 0.6 mm, 2.5 mm, 0.28 mm
M3 (Form A), M24, M5 (Form A), M2, M5
BS 4320:1968, BS 4463, DIN 7980, DIN 125A, DIN 7603A