Internal Tooth, Plain Washer, Full Washers, Form A, Flat Washers
Brass, Fibre, Copper, TPE, Stainless Steel
4.51 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
4.85 mm, 13 mm, 12.2 mm, 4.36 mm, 6.5 mm
8.1 mm, 1.2 mm, 2.5 mm, 1.1 mm, 0.28 mm
M24, M5 (Form A), M16, M20, M8
BS 4320B, BS 4463, BS 4320, ASME B18.21.1, ASME B18.22.1
ASTM F844