S-95615A341 1 1/8"-7 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through nylon insert locking mechanism that maintains secure fastening under dynamic loads
• Heavy-duty performance with Grade 5 strength classification for demanding industrial applications
• Enhanced corrosion protection provided by zinc plating for extended service life in harsh environments
• High-temperature capability with nylon insert rated up to 220°F (104°C) for thermal stability
• Reliable thread engagement with Class 2B thread fit ensuring consistent installation and removal
• Quick installation using standard wrench tools thanks to external hex drive design
• Environmental compliance meeting both RoHS 3 and REACH standards for safe industrial use

Professional Applications & Engineering Value

This Grade 5 zinc-plated steel locknut with nylon insert delivers exceptional engineering value in vibration-prone environments where fastener security is critical. The coarse UNC threads (1 1/8"-7) provide rapid installation and superior resistance to loosening under cyclic loading conditions common in heavy machinery, automotive assemblies, and industrial equipment. The nylon insert locking mechanism creates consistent friction that maintains clamp load without damaging mating threads, making it ideal for applications requiring repeated disassembly and reassembly. The zinc-plated steel construction combines mechanical strength with corrosion resistance, while the 220°F temperature rating ensures performance stability in thermally challenging environments. This locknut solves the critical industrial challenge of maintaining joint integrity in high-vibration applications where standard fasteners would fail.

Specification Summary & Compliance

This locknut features 1 1/8"-7 UNC coarse threads with Class 2B thread fit for precise engagement and reliable performance. Manufactured to Grade 5 strength standards with standard hex profile (1 5/8" width) and external hex drive style. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and industrial reliability. The nylon insert locking type provides consistent vibration resistance while maintaining dimensional accuracy throughout the fastener's service life.