Locknuts Aztech Locknut Company > Locknuts All-Metal (Inch) Engineered for strength and reliability, these locknuts provide excellent resistance to vibration and loosening, ensuring long-lasting performance. All-Metal (Metric) These locknuts are designed for easy installation and compatibility with various fasteners, enhancing efficiency on the production floor. Nylon Insert (Inch) Their reliability and versatility make them essential for maintaining the integrity of assemblies in various industrial settings. Nylon Insert (Metric) The nylon insert provides excellent resistance to vibration and prevents loosening, ensuring a stable and secure connection. FlexSix Designed for the aerospace industry, offering unparalleled strength and reliability, with unique six-sided design enhances grip.