Features Material: Crafted from 304 stainless steel, ensuring strength and longevity. The flat head and delicate thread with uniform inclination provide a smooth without burrs, ensuring efficient and reliable performance. Versatile Application: Simplify workpiece insertion with a wide applicability, suitable for high-end models, bar equipment, steel pipe fittings, and e materials. This makes it an ideal choice for various industrial and construction needs. Easy Installation: Suited for all installation requirements, this product can be effortlessly installed into different materials such as steel, plastic, and fiberglass, providing convenience and flexibility for various projects. User-Friendly Design: With fine workmanship and ease of use, this product is suitable for both beginners and experienced professionals, ensuring a hassle- experience with every use. Customizable Specifications: Choose from a range of nut specifications to meet diverse needs, offering flexibility and versatility for different applications. Specification: Item Type: Rivet Nuts Weight: Approx.443g / 15.6oz Material: 304 Stainless Steel Product Model 21mm / 0.9in Package List: 50 x M3 Rivet Nuts 50 x M4 Rivet Nuts 30 x M5 Rivet Nuts 20 x M6 Rivet Nuts 15 x M8 Rivet Nuts 5 x M10 Rivet Nuts Package List 50 x M3 Rivet Nuts 50 x M4 Rivet Nuts 30 x M5 Rivet Nuts 20 x M6 Rivet Nuts 15 x M8 Rivet Nuts 5 x M10 Rivet Nuts