- Product material: 304 stainless steel, 65 manganese steel 2. Surface treatment: basic color + blue and white zinc 3. Product application: cars, motorcycle trailers, 4. Product function: Fastening elements that connect plastic decorations to the body have high elasticity, High strength, high hardness, also known as split pin nut, will not fall off when carrying the supporting parts, and the installation is convenient and quick. Most importantly, they play a solid role in the connection between the product and the product. 5. Product Specifications: M4-5OPCS.M5-5oPCSM6-30PCS, M8-30PCS6, packing method: in carton 7, packing quantity: 160PCS