S-95615A310 7/8"-14 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through nylon insert technology that maintains secure locking under dynamic loads
• Enhanced durability in high-temperature environments with nylon insert rated for continuous service up to 220°F
• Exceptional corrosion protection provided by zinc-plated steel construction for extended service life
• Precision thread engagement with UNF fine threads and Class 2B fit ensuring reliable performance in critical applications
• Heavy-duty clamping force delivered by Grade 5 strength rating for demanding industrial applications
• Easy installation and removal with standard external hex drive design compatible with common tools
• Compliance with environmental regulations including REACH and RoHS 3 for global manufacturing requirements

Professional Applications & Engineering Value

This Grade 5 nylon insert locknut delivers exceptional engineering value in applications where vibration-induced loosening poses significant operational risks. The zinc-plated steel construction combined with the nylon insert locking mechanism creates a reliable vibration-resistant solution that maintains clamping force in demanding environments. The UNF fine threads provide superior thread engagement and distribution of load stresses, while the external hex drive ensures compatibility with standard industrial tools. Engineered to withstand temperatures up to 220°F, this locknut is ideal for automotive assemblies, heavy machinery, industrial equipment, and construction applications where thermal cycling and dynamic loads are common challenges. The combination of precision thread fit and locking technology addresses the critical need for maintained fastener integrity in high-vibration scenarios.

Specification Summary & Compliance

This heavy-duty locknut features 7/8"-14 UNF fine threads with Class 2B thread fit for precision engagement, measuring 1 1/4" across flats and 63/64" in height. Manufactured from zinc-plated steel with Grade 5 strength rating, the nut incorporates right-hand thread direction and nylon insert locking technology rated for continuous service up to 220°F. The product is fully compliant with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) environmental standards, ensuring suitability for regulated industrial applications worldwide.