Features: Made of high quality stainless steel. High stength,anti-rust. The fastening field of rivet nuts is widely used in the assembly of electromechanical and light industrial products such as automobiles, aviation, instruments, furniture and decoration. It is developed to solve the shortcomings of easy melting of thin metal sheet and thin pipe welding nuts and easy sliding of internal threads. It does not need to tap internal threads, weld nuts, riveting firmly, high efficiency and convenient use. 5PCS/set rivet nut gun ram head rivet tool iron plate nut welding household multi-functional rivet nut accessories Specifications: Material: Stainless Steel Type: M3 M4 M5 M6 M8 Quantity: 5PCS/Set Weight:250g Package Includes: 1 Set Riveter Tips note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement.