Norton Gearbox Top Bolt Nut

This silencer clamp is a substantial design, suitable for clamping silencers on to pipes, on cars and motorcycles. It is based on a 1950's pattern, used on many motorcycles of that era, and can be re-used many times. It is simple to replace the 1/4-UNF bolt and nut, if ever needed. It is available in other diameters