Features Made of premium material, these locknuts are sturdy and durable. These lock nuts are an amazing replacement for normal hardware nuts, vehicles, domestic or outdoor applications. They can prevent vibration from loosening a bolted joint, resist loosening under vibrations to provide a locking action. The size of the lock nut is M5, comes with 10 pieces in total. Simple and quick to use, convenient to tighten or loosen. Features: 1. Made of premium material, these locknuts are sturdy and durable. 2. Locknut size is M5, comes with 10 pieces in total. 3. These lock nuts are an amazing replacement for normal hardware nuts, vehicles, domestic or outdoor applications. 4. Simple and quick to use, convenient to tighten or loosen. 5. They can prevent vibration from loosening a bolted joint, resist loosening under vibrations to provide a locking action. Description: Material: Aluminium/Nylon Type: Aluminum Alloy Hex Nuts Surface Treatment: Anodized Size: M5 Colour: black. Quantity: 10 pieces/bagPackage includes: 1 x 10 self-locking nuts with nylon insert Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package List