S-95030A520 5/16"-24 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through cotter pin locking mechanism, preventing loosening in high-stress applications
• Precision fine threading (UNF 5/16"-24) ensures tighter fit and better load distribution compared to coarse threads
• Class 2B thread fit provides optimal clearance for smooth assembly while maintaining secure fastening
• Heavy-duty steel construction delivers exceptional strength and durability for demanding industrial environments
• Standard 1/2" external hex profile enables easy installation with common wrenches and tools
• Comprehensive safety compliance with RoHS 3 and REACH regulations, ensuring environmental and workplace safety
• Optimized slot dimensions (0.078" depth, 0.09" width) accommodate standard 5/64" cotter pins for reliable locking

Professional Applications & Engineering Value

This 5/16"-24 UNF steel castle locknut addresses critical vibration-induced failure points in automotive, machinery, and industrial systems. The cotter pin locking mechanism provides permanent security where conventional nuts might loosen under constant motion or shock loads. Manufactured from high-grade steel with Class 2B fine threads, this external hex drive nut maintains precise clamping force while resisting wear in high-cycle applications. The standard hex profile ensures compatibility with existing tooling, reducing installation time and maintenance costs. Engineered for environments where reliability is non-negotiable, this castle locknut delivers consistent performance in axle assemblies, rotating shafts, and critical linkage systems where vibration resistance is paramount.

Specification Summary & Compliance

This castle locknut features 5/16"-24 UNF fine threads with Class 2B fit per unified thread standards, ensuring precise dimensional accuracy. The 1/2" hex width and 17/64" height provide standardized installation dimensions. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental compliance. The locking system accommodates 5/64" cotter pins with minimum slot dimensions of 0.078" depth and 0.09" width for secure fastening applications.