Specification: Nut material: 65% manganese steel Screw material: stainless steel 304 Features: galvanized, strong rust resistance, the surface is not easy to oxidize and discolor. The product is suitable for motorcycles, automobiles, hardware, etc. Product function: the fasteners connecting the plastic ornaments to the car body have high elasticity, high strength and high rigidity. Also known as the splint nut, the support parts will not fall off during transportation, and the installation is convenient and quick. It mainly serves as a firm connection between products. Package includes: 25 x No.6 U nuts (zinc yellow plated) 25 x No.8 U nuts (zinc yellow coating) 25 x No.10 U nuts (zinc yellow coating) 25 x No.12 u nuts (zinc yellow coating) 25 x M3 x 12 flange self-tapping screws 25 x M4 x 12 flange self-tapping screws 25 x M4 x 16 flange self-tapping screws 25 x M5 x 20 flange self-tapping screws Notes: 1. Due to the difference between different monitors, the pictures may not reflect the actual color of the item. 2. Compare the detail sizes with yours, please allow 1-3mm error due to manual measurement. 3. If the products have some problems, please leave a message before giving bad feedback. Thanks for your understanding and have a nice day!