S-90047A140 1/2"-20 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 center lock distorted thread design that maintains secure locking under dynamic loads
- Excellent corrosion protection with 18-8 stainless steel construction for extended service life in harsh environments
- Precise thread engagement with Class 2B thread fit ensuring reliable fastening and consistent performance
- Easy installation and removal using standard wrenches with the external hex drive style
- Optimized for fine thread applications with 1/2"-20 UNF threading providing superior holding power
- Compliance assurance meeting RoHS 3 and REACH environmental standards for global industrial use
- Dimensional reliability with consistent 3/4" width and 7/16" height for predictable assembly results
Professional Applications & Engineering Value
This 18-8 stainless steel locknut with center lock distorted thread technology addresses critical vibration-induced loosening challenges in industrial machinery, automotive assemblies, and heavy equipment. The distorted thread design creates controlled interference that resists rotational movement while maintaining Class 2B thread fit precision for smooth installation. The UNF fine thread configuration (1/2"-20) delivers enhanced clamping force distribution, making it ideal for applications requiring maximum vibration resistance without compromising disassembly capability. The corrosion-resistant properties of 18-8 stainless steel ensure long-term performance in demanding environments where moisture, chemicals, or temperature variations would compromise ordinary fasteners.
Specification Summary & Compliance
This distorted thread locknut features Class 2B thread fit tolerance for precise engagement with UNF standard threads. The 1/2"-20 UNF fine thread configuration follows established industrial standards with right-hand thread direction and external hex drive compatibility. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial applications. Dimensional specifications include 3/4" width across flats and 7/16" height for consistent performance in assembly operations.
