S-95030A150 3/8"-16 Locknuts

Key Features & Benefits at a Glance

• Secure anti-loosening performance with cotter pin locking mechanism for vibration-resistant applications
• Enhanced corrosion resistance through zinc-plated steel construction in harsh industrial environments
• Reliable thread engagement with Class 2B thread fit ensuring consistent assembly performance
• Standard hex profile for universal compatibility with common wrenches and tools
• Optimized slot dimensions (0.11" depth, 0.12" width) for secure cotter pin retention
• Coarse UNC threading providing faster assembly and reduced cross-threading risks
• Compliance-ready design meeting both REACH and RoHS 3 environmental standards

Professional Applications & Engineering Value

This 3/8"-16 UNC locknut delivers critical vibration resistance in heavy-duty industrial applications where safety and reliability are paramount. The zinc-plated steel construction provides essential corrosion protection for machinery, agricultural equipment, and automotive assemblies exposed to demanding conditions. The cotter pin locking mechanism offers a mechanical safety lock that prevents rotational loosening under continuous vibration, making it ideal for high-stress connections in construction equipment, trailer hitches, and industrial machinery. The coarse UNC thread profile ensures quick installation and superior resistance to cross-threading damage during assembly operations.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 2B thread fit and UNC coarse threading (3/8"-16). Features standard hex profile (9/16" width) with external drive style and right-hand thread direction. Slot dimensions optimized for 7/64" cotter pins with minimum slot depth of 0.11" and width of 0.12". Full compliance with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) environmental regulations for industrial hardware applications.