S-94450A238 5/16"-18 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and outdoor applications.
• Enhanced space-saving design due to the thin profile, allowing for use in compact assemblies where standard nuts won't fit.
• Reliable left-hand thread engagement prevents loosening in applications where counter-clockwise rotation is standard or required for safety.
• Easy installation and removal with the external hex drive, providing a firm grip for standard wrenches and reducing assembly time.
• Consistent thread fit and interchangeability ensured by UNC coarse threads and Class 2B tolerance, minimizing cross-threading risks.
• Compliance with major environmental regulations including RoHS 3 and REACH, making it suitable for global supply chains and sensitive industries.

Professional Applications & Engineering Value

This 5/16"-18 UNC left-hand thin hex nut is engineered for specialized applications requiring reverse-threading mechanisms, such as rotating machinery, conveyor systems, and certain automotive components where standard right-hand threads would unscrew under operational torque. The 18-8 stainless steel provides excellent resistance to oxidation and chemical exposure, extending the component's lifespan in demanding conditions like marine or chemical processing plants. Its thin hex nut profile is a critical advantage in weight-sensitive or space-constrained designs, allowing engineers to maintain structural integrity without adding bulk. The coarse UNC thread and Class 2B thread fit offer a balance of quick assembly and reliable holding power, reducing the risk of stripping and ensuring consistent performance in high-vibration environments. This nut is a dependable solution for maintenance, repair, and OEM applications where precision and durability are non-negotiable.

Specification Summary & Compliance

This nut conforms to Unified National Coarse (UNC) thread standards with a Class 2B thread fit for consistent dimensional accuracy and ease of assembly. The specified thread size is 5/16"-18 with a left-hand direction. It is manufactured from 18-8 Stainless Steel and features an external hex drive style. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety standards for industrial use.