The 3/8UNC Lock Nut with Nylon Insert from the Qualfast product range is designed to provide secure fastening solutions in various applications. Crafted from high-quality A4 stainless steel, these lock nuts are engineered to resist corrosion and ensure durability, making them ideal for use in challenging environments. The nylon insert enhances the locking mechanism, preventing loosening due to vibration and movement. This reliable fastening option is essential for maintaining the integrity of assemblies, offering peace of mind in both professional and DIY projects. Features: Material: Stainless Steel Grade: A4 Thread Size: 3/8 Driving Features: Hexagon Applications: - Ideal for securing bolts in high-vibration environments, preventing loosening over time. - Suitable for use in marine applications due to A4 stainless steel's corrosion resistance.