Features: <br>1. Made of premium material, these lock nuts are sturdy and durable. <br>2. They can prevent vibration from loosening a bolted joint, resist loosening under vibrations to provide a locking action. <br>3. These lock nuts are amazing replacement for normal nuts of hardware, vehicles, home or outside applications. <br>4. Simple and fast to use, convenient to tighten or loosen. <br>5. The size of the lock nut is M4, comes with 10pcs in total. <br> <br> <br>Description: <br>Material: Aluminum/Nylon <br>Type: Aluminum Alloy Hex Nuts <br>Surface Treatment: Anodize <br>Size: M4 <br>Color: Dark Red <br>Quantity: 10pcs/Bag <br> <br>Note: <br>Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! <br> <br>Package Includes: <br>1 x 10pcs Nylon Insert Self-Lock Nuts<br>1、Made of premium material, these lock nuts are sturdy and durable. <br>2、They can prevent vibration from loosening a bolted joint, resist loosening under vibrations to provide a locking action. <br>3、These lock nuts are amazing replacement for normal nuts of hardware, vehicles, home or outside applications. <br>4、Simple and fast to use, convenient to tighten or loosen. <br>5、The size of the lock nut is M4, comes with 10pcs in total.