S-90630A213 1 1/2"-6 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance with a nylon insert that maintains locking performance up to 220°F, preventing loosening in high-stress environments.
• Exceptional strength and durability from Grade 8 steel construction, ensuring reliable performance in heavy-duty industrial applications.
• Easy installation and removal with a standard external hex drive, compatible with common wrenches for efficient assembly.
• Secure coarse UNC threading with Class 2B fit, providing excellent engagement and resistance to cross-threading in demanding conditions.
• Compliance with environmental standards including REACH and RoHS 3, ensuring safe use in regulated industries.
• Right-hand thread design for standard directional tightening, simplifying integration into existing systems.
• Robust dimensions (2 25/64" width, 1 59/64" height) offering a solid grip and stable fastening in inch-based assemblies.

Professional Applications & Engineering Value

This Grade 8 steel nylon insert locknut is engineered to address critical challenges in heavy-duty industrial applications, such as machinery, automotive, and construction equipment, where vibration-induced loosening can lead to failures. The nylon insert creates consistent friction on the bolt threads, maintaining clamp load without the need for additional locking devices, which reduces assembly time and costs. With its coarse UNC threading and Class 2B thread fit, it ensures quick, reliable installation and high resistance to wear in harsh environments. The external hex drive allows for straightforward torque application, making it ideal for maintenance and production lines requiring dependable, reusable fasteners that meet stringent REACH and RoHS 3 compliance for environmental safety.

Specification Summary & Compliance

This locknut features precise Class 2B thread fit and adheres to UNC coarse thread standards for consistent performance. It is manufactured from Grade 8 steel for high strength and durability, with dimensions of 2 25/64" width and 1 59/64" height in the inch system. The product complies with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) regulations, ensuring it meets industrial safety and environmental requirements.