S-92501A543 1 1/4"-7 Locknuts
Locknuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance through top lock distorted thread design that maintains clamp force in high-shock environments
- Exceptional corrosion protection with zinc plating that extends service life in demanding industrial conditions
- High-strength performance meeting ASTM Grade C specifications for reliable fastening in heavy-duty applications
- Easy installation and removal with standard external hex drive compatible with common wrenching tools
- Precise thread engagement with Class 2B fit ensuring consistent performance and reduced cross-threading risk
- Environmental compliance with RoHS 3 and REACH standards for safe use across regulated industries
- Optimized for coarse threading with UNC 1 1/4"-7 configuration providing rapid assembly in structural applications
Professional Applications & Engineering Value
This zinc-plated steel locknut delivers critical vibration resistance where conventional fasteners fail. The top lock distorted thread technology creates permanent friction along the mating surface, preventing loosening under dynamic loads in machinery, construction equipment, and transportation systems. Engineered with UNC coarse threading and Class 2B fit, it ensures rapid installation while maintaining precision alignment. The external hex drive accommodates standard tools for efficient maintenance in confined spaces. Ideal for heavy equipment, structural steel connections, and industrial machinery requiring ASTM Grade C strength with reliable locking performance that withstands extreme operating conditions.
Specification Summary & Compliance
This locknut features 1 1/4"-7 UNC coarse threads with Class 2B thread fit for precise dimensional accuracy. Manufactured to ASTM Grade C strength specifications with top lock distorted thread locking mechanism. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards. Dimensions: 1 7/8" width × 1 3/32" height with right-hand thread direction and external hex drive configuration.
