Pull rivet nut tool gun:This nut rivet tool is made from aluminum alloy which provides strength, corrosion protection and long service life, it is suitable to be used in repairing cars, trailers and furniture, or even building boats, it is also for repairing agricultural tools and equipment. Great fixing function:With an open end, a small flange, a round hole, a threaded inner wall and a partial anti-slip surface, these flat head rivet nuts have a good performance of the fastening function. Various sizes: There are different sizes, M3 , M4, M5, M6, M8 and they normally have a low profile compared to other nuts. Fully Featured:Each size includes many pieces of rivet nuts so you don’t have to go to a hardware store to look for rivet nuts for a some time, and it comes with a rivet gun and many mandrels and bits for convenient riveting. Plastic Storage Case:This nut rivet tool has a plastic protective box , it is easy to carry. Size: as shown Package includes: 86pcs/106pcs rivet nut set