M10 × 140mm Kart Rear Bumper Bolts – Pair, Zinc Plated 8.8 High Tensile Steel, Fully Threaded Hex Head

A pair of M10 × 140mm rear bumper bolts for kart chassis, supplied ready to fit both sides. Machined from 8.8 grade high tensile carbon steel and zinc plated to resist corrosion, these are fully threaded along their length so bumper position can be set anywhere on the shank rather than being fixed by a plain section. Hex heads take a standard 17mm spanner or socket. Rear bumper mountings take repeated kerb strikes and contact, so high tensile grade matters here — a lower grade bolt bends rather than holding the bumper true. Supplied new as a pair of bolts.