Runxingfu Dome Nuts M3 M4 M5 M6 M8 M10 M12 M16 M20 Metal Copper Hex Cap Hexagon Bolt Nut Protective Cover Screws Caps

This cap nut has a variety of sizes for you to choose from, you can check the corresponding size data on the size chart. Size description: M3: The inner diameter of the thread is 3mm, which needs to be used with a washer with a diameter of 3mm and an M3 screw. The cap nut is made of copper, which is durable, rust-proof and prolongs the life of the nut. Cap nut are round design, which can prevent screws and nuts from rusting, and play a role in decorative appearance. Suitable for industrial, electrical, hardware, equipment, automobiles, motorcycles, machinery, furniture and architectural decoration.