S-97135A433 7/8"-14 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through nylon insert locking that maintains secure fastening in high-motion environments
• Exceptional strength performance with Grade 8 classification ensuring reliable performance in heavy-duty applications
• Enhanced corrosion protection from black-oxide steel construction that extends service life in demanding conditions
• Precise thread engagement with Class 2B fit and UNF fine threads providing consistent, reliable connections
• High-temperature capability with nylon insert rated to 220°F for stable performance in thermal cycling environments
• Industry-standard compatibility featuring standard hex profile and external hex drive for easy installation with common tools
• Environmental compliance assurance meeting REACH and RoHS 3 standards for responsible manufacturing

Professional Applications & Engineering Value

This Grade 8 nylon insert locknut delivers critical vibration resistance for industrial machinery, automotive assemblies, and heavy equipment where constant motion threatens fastener integrity. The black-oxide steel construction provides essential corrosion protection in harsh environments, while the UNF fine thread configuration with Class 2B fit ensures precise, reliable connections that resist loosening under dynamic loads. The nylon insert maintains consistent locking force up to 220°F, making it ideal for applications experiencing thermal cycling. Engineered for external hex drive systems, this locknut offers straightforward installation and removal with standard tools, reducing maintenance time and costs in industrial settings where reliability is paramount.

Specification Summary & Compliance

This 7/8"-14 UNF locknut features Class 2B thread fit precision and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards. The manufacturing adheres to inch system specifications with right-hand fine threading, ensuring compatibility with standard UNF bolt systems. The Grade 8 strength classification guarantees high mechanical performance, while the black-oxide surface treatment provides additional corrosion resistance for extended service life in demanding industrial applications.