Mudguard, External Tooth, Internal Tooth, Full Washers, Form A
Steel, Fibre, Brass, Nylon, TPE
3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 10 mm, 11.88 mm
5 mm, 2.25 mm, 13 mm, 4.36 mm, 6.5 mm
5.8 mm, 0.8 mm, 1.8 mm, 0.28 mm, 0.7 mm
M8, M5 (Form A), M12, M4, M10
BS 4320G, DIN 127B, DIN 6797A, BS 4320B, BS 4463