S-94140A155 1/2"-13 Locknuts
Locknuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance through Flex-Top locking technology that maintains secure fastening under dynamic loads
- Excellent corrosion protection with 18-8 stainless steel construction for extended service life in harsh environments
- Space-saving thin profile (21/64" height) ideal for applications with limited clearance while maintaining full locking performance
- Reliable thread engagement with Class 2B thread fit ensuring consistent installation and removal without galling
- Easy installation and removal using standard wrench tools thanks to the external hex drive design
- Wide compatibility with 1/2"-13 UNC coarse thread components commonly used in industrial assemblies
- Environmental compliance meeting RoHS 3 and REACH standards for safe use across regulated industries
Professional Applications & Engineering Value
This thin Flex-Top locknut addresses critical vibration-induced loosening challenges in industrial machinery, automotive assemblies, and structural frameworks. The innovative 18-8 stainless steel construction provides exceptional corrosion resistance while the Flex-Top locking mechanism creates consistent radial pressure along the UNC coarse threads, maintaining clamp force without damaging mating components. The thin hex nut profile enables installation in confined spaces where standard locknuts cannot fit, while the external hex drive ensures compatibility with common torque tools. Engineers specify this solution for applications requiring reliable vibration resistance combined with the durability of stainless steel in demanding environments.
Specification Summary & Compliance
This 1/2"-13 UNC locknut features Class 2B thread fit per Unified Thread Standard specifications, ensuring precise dimensional accuracy and reliable performance. The thin profile measures 3/4" across flats with 21/64" height. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental safety and material transparency. The right-hand coarse threading and external hex drive conform to industry standards for compatibility with common fastening systems and tools.
