Internal Tooth, Cup, Plain Washer, Full Washers, Form A
A2/304 Stainless Steel, Brass, Fibre, TPE, 301 Stainless Steel
4.51 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
4.36 mm, 4.85 mm, 3.2 mm, 2.1 mm, 6.5 mm
1.2 mm, 0.16 mm, 0.4 mm, 0.5 mm, 1.1 mm
M24, M2, M5 (Form A), M12, M5
DIN 6797A, BS 4320, DIN 127B, ASME B18.22.1
ASTM F844, BS 4320B