S-94450A280 1/2"-20 Hex Nuts
Hex Nuts
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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
- Left-hand threading provides secure fastening in reverse-thread applications where standard nuts would loosen under counter-clockwise rotation
- Thin profile design saves space and weight in compact assemblies while maintaining full thread engagement
- 18-8 stainless steel construction offers excellent corrosion resistance and durability in demanding environments
- Class 2B thread fit ensures smooth assembly and reliable performance with consistent torque characteristics
- UNF fine threading delivers superior vibration resistance and precise adjustment capabilities
- External hex drive enables easy installation and removal with standard wrenching tools
- Full regulatory compliance meets RoHS 3 and REACH standards for use in regulated industries
Professional Applications & Engineering Value
This specialized left-hand thread hex nut addresses critical engineering challenges in applications requiring reverse-thread security. The 18-8 stainless steel construction provides exceptional corrosion resistance for harsh environments, while the thin hex nut profile offers space-saving advantages in compact mechanical assemblies. The UNF fine threading with Class 2B fit ensures precise engagement and superior vibration resistance, making it ideal for rotating machinery, conveyor systems, and specialized equipment where counter-clockwise motion could loosen standard fasteners. These left-hand threaded fasteners are engineered to maintain integrity in high-stress applications, providing reliable performance in automotive, aerospace, and industrial equipment requiring reverse-thread solutions.
Specification Summary & Compliance
This 1/2"-20 UNF left hand thin hex nut features Class 2B thread fit per UNF standards with precise dimensional accuracy. The inch measurement system ensures compatibility with North American equipment specifications. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental compliance and safety for industrial applications. The external hex drive configuration follows standard wrenching conventions for straightforward installation and maintenance procedures.
