External Tooth, Internal Tooth, Lock Washer, Full Washers, Form A
301 Stainless Steel, Vulcanised Fibre, TPE, Nylon, Brass
3/4" X 3" X 1/4", 7.99 mm, 15.5 mm, 6.9 mm, 11.88 mm
4.85 mm, 13 mm, 5.36 mm, 5 mm, 6.5 mm
5.8 mm, 0.16 mm, 1.8 mm, 0.28 mm, 0.7 mm
M16, M6, M12, M24, M5 (Form A)
BS 4320, ASME B18.8.1, ASME B18.21.1, ASME B18.22.1
ASTM F844, BS 4320B