These A2 nylon insert nuts are high-quality stainless steel fasteners designed to provide secure, vibration-resistant and long-lasting performance in demanding environments. The integrated nylon insert delivers a reliable locking action on UNF imperial threads, reducing the risk of loosening under load, shock or movement.

Manufactured in accordance with recognised international standards such as ASME, ANSI and BS (including BS1768), these lock nuts offer precise, consistent threading for easy installation and dependable clamping force. The accurate thread profile ensures excellent fit and compatibility with matching UNF bolts and studs across a wide range of applications.

Produced from A2 (304) stainless steel, these nylon insert nuts offer excellent resistance to corrosion, moisture and many industrial contaminants. This makes them particularly suitable for use in harsh or exposed environments, including marine, construction, engineering, automotive, and general industrial projects where reliability and longevity are critical.

Ideal for both new assemblies and maintenance work, these stainless steel nylon insert lock nuts provide strong, secure fastening performance while helping to prevent unintentional loosening over time. They are a dependable choice wherever a durable, corrosion-resistant and vibration-resistant fastening solution is required.