Enhance the security and reliability of your bolted joints with these premium M4 Nylon Insert Self-Lock Nuts. Crafted from high-quality aluminum alloy and featuring an anodized black surface treatment, these lock nuts are designed for durability and long-lasting performance. Each pack includes 10 pieces, providing an ideal solution for hardware, automotive, home, and outdoor applications. Key Features: · Premium Aluminum Alloy Construction: Ensures sturdy, durable lock nuts that withstand wear and extend service life. · Nylon Insert for Secure Locking: The nylon insert effectively prevents loosening caused by vibrations, delivering a reliable locking action to maintain joint integrity. · Vibration Resistant: Designed to resist loosening under vibrations, making them perfect replacements for standard nuts in various environments. · Easy Installation and Removal: Simple and fast to tighten or loosen, improving efficiency during assembly and maintenance. · Versatile Use: Suitable for hardware, vehicle repairs, home projects, and outdoor applications, offering a dependable fastening solution. · Compact M4 Size: Precisely sized for various fastening needs, with 10 nuts included per pack for convenience and value. Specifications: · Material: Aluminum Alloy with Nylon Insert · Surface Treatment: Anodized Black Finish · Size: M4 · Quantity: 10 Pieces per Pack Package Includes: · 10 x M4 Nylon Insert Self-Lock Nuts These M4 Nylon Insert Self-Lock Nuts combine robust aluminum alloy with a secure nylon locking feature to prevent loosening from vibration. Their anodized surface enhances durability and corrosion resistance, making them an excellent choice for reliable fastening in a wide range of applications.