Usage: A locknut with ridges on the face of the nut that bite into the surface it is tightened against. the serrations are angled such that they keep the nut from rotating in the direction that would loosen the nut. Due to the serrations they cannot be used with a washer or on surface that cannot be scratched.
Our range of adaptable boxes are all in stock and available to order in a range of over 25 sizes. Made of steel with a galvanised finish for long-lasting durability, strength and corrosion resistance, each box features a body, flanged cover and a lid with fixing screws and overlapping edges that fold over the sides for a tight fit. These boxes are designed to protect electrical connections of all varieties.