S-93425A030 5/16"-18 Hex Nuts

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with zinc-plated steel construction for extended service life in demanding environments
• Reliable left-hand threading provides secure fastening in applications requiring reverse-direction rotation
• Precise Class 2B thread fit ensures smooth assembly and consistent clamping force
• Grade 2 strength rating delivers dependable performance for medium-duty industrial applications
• Standard UNC coarse threading offers excellent engagement and vibration resistance
• Full regulatory compliance with RoHS 3 and REACH standards for global industrial use
• Universal 1/2" hex profile enables easy installation with common wrench tools

Professional Applications & Engineering Value

This 5/16"-18 UNC left-hand hex nut addresses critical reverse-threading requirements in industrial machinery, automotive systems, and rotating equipment where standard right-hand threads would loosen under counter-rotational forces. The zinc-plated steel construction provides essential corrosion protection while maintaining Grade 2 strength for reliable performance in medium-stress applications. The coarse UNC thread form ensures rapid assembly and superior resistance to vibration-induced loosening, making it ideal for equipment maintenance, conveyor systems, and agricultural machinery. With its external hex drive style and standard profile, installation and removal are streamlined using common tools, reducing maintenance downtime in industrial settings.

Specification Summary & Compliance

This hex nut features 5/16"-18 UNC coarse threads with Class 2B thread fit per ASME standards, ensuring proper clearance and engagement compatibility. Manufacturing conforms to Grade 2 strength requirements with dimensions of 1/2" width and 17/64" height. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting current environmental standards for industrial fastener applications.