These A2 stainless steel nylon insert lock nuts are high-quality fasteners designed to provide secure, vibration-resistant and long-lasting performance in demanding environments. Featuring a durable nylon insert, they offer excellent resistance to loosening under load, making them ideal where a reliable, maintenance-free locking action is essential. Manufactured to recognised ASME, ANSI or BS standards, including BS1768 for UNC threaded fasteners, they ensure precise, consistent threading and dependable fit with matching bolts and studs.

Produced from A2 304 stainless steel, these imperial UNC nyloc nuts deliver outstanding corrosion resistance, even in harsh or outdoor conditions. They are well suited to industrial, marine, engineering and construction applications where strength, durability and resistance to rust are critical. The combination of stainless steel construction and nylon insert technology provides optimal fastening strength, security and longevity across a wide range of uses.

Easy to install with standard tools, these stainless steel nylon insert nuts are an excellent choice for both new assemblies and replacements, helping to maintain joint integrity and reduce the risk of loosening due to shock, vibration or thermal movement. Whether used in machinery, structural frameworks, marine equipment or general fabrication, they offer a reliable, professional-grade fastening solution that delivers consistent performance over time.