External Tooth, Plain Washer, Crinkle, Full Washers, Form A
Nylon, Brass, Fibre, TPE, Copper
4.51 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
4.85 mm, 6.4 mm, 5.36 mm, 13 mm, 6.5 mm
1.2 mm, 0.4 mm, 3.5 mm, 1.6 mm, 0.3 mm
M3 (Form A), M24, M5 (Form A), M3, M2.5
BS 4463, ASME B18.22.1
ASTM F844, DIN 7980, DIN 6797J, BS 4320B