S-97135A402 1"-8 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance thanks to the nylon insert that maintains locking force under dynamic loads, preventing loosening in industrial machinery.
• High-temperature durability with a nylon insert rated up to 220°F, ensuring reliable performance in demanding thermal environments.
• Exceptional strength and load capacity from Grade 8 steel construction, suitable for heavy-duty applications requiring maximum clamping force.
• Corrosion protection provided by zinc yellow-chromate plating, extending service life in harsh or outdoor conditions.
• Precise thread engagement with Class 2B fit and UNC coarse threads, enabling easy installation and consistent torque performance.
• Standard external hex design for compatibility with common wrenches, facilitating quick and secure assembly in maintenance and production.
• Reusable locking capability as the nylon insert can be used multiple times without significant loss of effectiveness, reducing replacement costs.

Professional Applications & Engineering Value

This Grade 8 nylon insert locknut is engineered to address critical challenges in high-vibration and heavy-load environments, such as automotive assemblies, construction equipment, and industrial machinery. The zinc yellow-chromate plated steel offers robust corrosion resistance, while the nylon insert effectively dampens vibrations that cause standard nuts to loosen over time. With a coarse UNC thread and Class 2B fit, it ensures quick installation and reliable torque retention, minimizing downtime in production lines. The ability to withstand temperatures up to 220°F makes it ideal for engines, pumps, and other applications where thermal cycling is a concern, providing long-term stability and reducing maintenance needs.

Specification Summary & Compliance

This locknut adheres to UNC thread standards with a Class 2B thread fit for precise dimensional accuracy. It is manufactured from high-strength Grade 8 steel and features a zinc yellow-chromate plating for enhanced durability. The product complies with industry specifications for external hex drive and right-hand threading, and meets general requirements for RoHS and REACH environmental directives, ensuring safe use in various industrial sectors.