S-95195A150 5/16"-24 Hex Nuts

Key Features & Benefits at a Glance

• Corrosion-resistant performance thanks to 18-8 stainless steel construction, ensuring long-term reliability in harsh environments.
• Precise left-hand thread engagement with Class 2B fit for secure fastening in reverse-thread applications.
• Enhanced vibration resistance from fine UNF thread spacing, maintaining clamp load under dynamic conditions.
• Standard external hex drive for easy installation and removal with common wrench tools.
• Full regulatory compliance with RoHS 3 and REACH, meeting international environmental and safety standards.
• Durable mechanical properties of 18-8 stainless steel providing excellent strength and wear resistance.
• Consistent dimensional accuracy with 1/2" width and 17/64" height for reliable interchangeability.

Professional Applications & Engineering Value

This 5/16"-24 UNF left-hand thread hex nut addresses critical engineering challenges in applications requiring reverse-threading mechanisms. The 18-8 stainless steel material offers superior corrosion resistance, making it ideal for marine, chemical processing, and outdoor equipment where moisture and corrosive agents are present. The fine thread configuration provides increased surface contact area compared to coarse threads, delivering enhanced vibration resistance in machinery, rotating assemblies, and automotive components. With its Class 2B thread fit, this external hex nut ensures consistent engagement and reliable torque transmission, reducing the risk of cross-threading during installation. The left-hand threading is specifically engineered for applications where conventional right-hand threads would loosen due to rotational forces, providing a secure fastening solution for fan blades, grinding wheels, and other counter-rotational systems.

Specification Summary & Compliance

This hex nut features 5/16"-24 UNF left-hand fine threads with Class 2B thread fit per UNF standards, ensuring precise dimensional accuracy and interchangeability. The standard hex profile measures 1/2" across flats with 17/64" height. Manufacturing complies with industry standards for inch-series fasteners, and the product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, including the latest SVHC requirements as of June 2022.