S-94140A159 1/2"-20 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 innovative Flex-Top locking design that maintains tension under dynamic loads
- Excellent corrosion protection with 18-8 stainless steel construction for harsh industrial environments
- Space-saving thin profile (21/64" height) ideal for applications with limited clearance
- Precise Class 2B thread fit ensures smooth installation and reliable engagement with mating components
- Enhanced torque transmission via standard 3/4" external hex drive for easy installation with common tools
- Fine thread configuration (1/2"-20 UNF) provides superior resistance to loosening in high-vibration applications
- Full regulatory compliance with RoHS 3 and REACH standards for global industrial applications
Professional Applications & Engineering Value
This 18-8 stainless steel thin locknut delivers exceptional performance in demanding industrial settings where vibration resistance and corrosion protection are critical. The innovative Flex-Top locking technology creates consistent prevailing torque that prevents spontaneous loosening in machinery, automotive assemblies, and precision equipment. The UNF fine thread configuration offers superior load distribution compared to coarse threads, making it ideal for applications requiring precise adjustment and maintained clamping force. With its thin hex nut profile and external hex drive, this fastener solves space-constrained installation challenges while ensuring reliable, long-term performance in harsh environments where chemical exposure and moisture are concerns.
Specification Summary & Compliance
This precision 1/2"-20 UNF thin locknut features Class 2B thread fit per Unified Thread Standard specifications, ensuring consistent engagement and reliable performance. The external hex drive measures 3/4" across flats with a total height of 21/64". Manufactured from 18-8 stainless steel with right-hand thread direction, this fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental and safety standards for industrial components.
