S-94450A240 5/16"-24 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and long-term reliability.
• Optimized weight and space savings due to the thin profile design, perfect for compact assemblies and weight-sensitive applications.
• Superior torque transmission and grip from the external hex drive, allowing for secure tightening with standard tools.
• Secure, reverse-threading engagement with the left-hand UNF fine thread, preventing loosening in counter-rotational systems.
• Precise and reliable thread fit ensured by Class 2B tolerance, reducing the risk of cross-threading and ensuring smooth assembly.
• Compliance with major environmental regulations including RoHS 3 and REACH, making them suitable for global supply chains.
• Dimensional accuracy in the inch system with a 1/2" width and 3/16" height, ensuring compatibility with standard components.

Professional Applications & Engineering Value

This 5/16"-24 UNF left-hand thin hex nut is engineered to address critical challenges in industrial and mechanical systems where reverse rotation is a factor. The 18-8 stainless steel material provides excellent resistance to oxidation and chemical exposure, making it a durable choice for automotive, aerospace, and marine applications. The left-hand thread direction is specifically designed for assemblies that rotate counter-clockwise under normal operation, preventing accidental disengagement. Combined with a Class 2B fine thread fit and external hex drive, this nut ensures high clamping force and vibration resistance, reducing maintenance needs and enhancing the longevity of the overall assembly. Its thin profile is particularly valuable in confined spaces, offering the strength of a standard hex nut without the bulk.

Specification Summary & Compliance

This nut adheres to UNF (Unified National Fine) thread standards with a 5/16"-24 fine thread size and a Class 2B thread fit for consistent, precise engagement. Dimensional specifications include a 1/2" width across flats and a 3/16" height. The product is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from restricted hazardous substances and suitable for use in environmentally conscious industries.