Anodize M4 Nylon Insert Self-Locking Nuts provide reliable fastening for industrial and mechanical applications. These aluminum alloy hex lock nuts reduce vibration-induced loosening in bolted joints, ensuring secure connections in machinery, automotive, and DIY projects.
Installation is simple: place the nut on the bolt, then tighten with a wrench until firm resistance is felt. The nylon insert creates consistent friction to avoid rotation and maintain tension under dynamic loads. Suitaable for replacing standard nuts in high-vibration environments.
Material: Aluminum
Type: Aluminum Alloy Hex Nuts
Surface Treatment: Anodize
Size: M3;M4
Color: Black ; Blue
Quantity: 10pcs/Bag

Package Includes:
1 x 10pcs Insert Self-Lock Nuts

Note:
1. The real color of the item may be slightly different from the pictures shown on the website caused by many factors such as brightness of your monitor and light brightness.
2. Please allow slight manual measurement deviation for the data. Thank for your understanding.
3. 1cm=0.39''.