S-90630A218 2"-12 Locknuts
Locknuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Temperature & Environment Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance through the high-temperature nylon insert, ensuring reliable performance in dynamic applications
- Exceptional strength and durability with Grade 8 steel construction, capable of withstanding heavy-duty industrial loads
- Precise thread engagement with Class 2B fit and UN extra fine threading for secure, leak-free connections
- High-temperature compatibility with nylon insert rated up to 220°F, maintaining locking integrity in demanding environments
- Easy installation and removal using standard external hex drive, reducing assembly time and tooling costs
- Full regulatory compliance with REACH and RoHS 3 standards, ensuring safe use across global industrial markets
- Optimized dimensional stability with standard hex profile and precise 3 9/64" width for consistent torque application
Professional Applications & Engineering Value
This Grade 8 steel locknut with nylon insert locking technology addresses critical vibration-induced loosening in heavy machinery, automotive assemblies, and structural frameworks. The 2"-12 extra fine UN thread provides maximum thread contact area, distributing stress evenly to prevent stripping under high cyclic loads. Engineered for industrial applications where thermal stability matters, the 220°F-rated nylon insert maintains consistent locking force without compromising mechanical properties. The external hex drive enables quick installation with standard tools, while the Class 2B thread fit ensures smooth engagement without galling—reducing maintenance downtime and improving operational safety in critical fastening systems.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2B thread fit and UN extra fine thread form (2"-12). Compliant with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) regulations. Mechanical properties meet Grade 8 strength classification for high-stress applications. Locking mechanism utilizes nylon insert technology rated for continuous service up to 220°F maximum temperature.
