It tightens and tightens the components, so you can use it in places without thinking of removing it. Made of aluminum for light weight and excellent workability. Features: Overlaps the riveted holes through the rivet and bite the other end by transforming the plastic into the other. It is more prone to excessive stress like a welded fitting on the joints. Made of aluminum for light weight and excellent processability. [How to use] (1) Tighten the components so you dont have to think about removing it. Excellent corrosion resistance.