Used over shafts, rivets or rods to hide unsightly rivets. Combines the reliability of spring steel with various decorative coatings for applications where the clasp remains visible. Provides reliable vibration resistant mounting The insertion and fixing on the plug depends on the size and material. Widely used for various household items, the axles such as lawn trolley, hand trolley, rolling bin, etc. These nut caps do not have a screw thread but have an inward facing flange. The flange is designed for quick installation as no tools are required and the nuts can be inserted. Nut caps are designed for permanent use. This was an excellent way to secure wheels and washers to a shaft or bar axle. No more losing pins and wheels. A drop of the lock would make this nut safer. Commonly used for various household items with axles such as lawn trucks and wheelie bins.