S-90648A029 1/4"-20 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through nylon insert locking mechanism that maintains secure fastening under dynamic loads
• Enhanced torque application with extra wide hex profile for better grip and reduced tool slippage during installation
• Corrosion protection provided by zinc plating, extending service life in various industrial environments
• High-temperature performance with nylon insert rated for continuous operation up to 250°F (121°C)
• Precise thread engagement with Class 2B UNC coarse threads ensuring reliable fit and easy assembly
• Environmental compliance meeting RoHS 3 and REACH standards for safe usage in regulated industries
• Right-hand thread design compatible with standard industrial equipment and familiar installation procedures

Professional Applications & Engineering Value

These nylon insert lock nuts deliver critical vibration resistance in demanding applications where loosening under dynamic loads poses significant safety and performance risks. The zinc-plated steel construction provides essential corrosion protection while maintaining high tensile strength, making these extra wide hex locknuts ideal for machinery, automotive, and heavy equipment assemblies. The UNC coarse thread pattern with Class 2B tolerance ensures quick installation and reliable performance in high-vibration environments, while the external hex drive design accommodates standard wrenching tools for efficient maintenance operations. With temperature resistance up to 250°F, these industrial fasteners maintain their locking integrity in elevated temperature applications common in manufacturing and processing equipment.

Specification Summary & Compliance

This 1/4"-20 lock nut features UNC coarse threads with Class 2B thread fit for precise dimensional accuracy and reliable engagement. Manufactured to inch system specifications with right-hand thread direction and external hex drive style. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe usage across industrial applications. The nylon insert locking mechanism provides consistent vibration resistance while maintaining compatibility with standard 1/4"-20 threaded components.