S-91078A222 1/2"-13 Hex Nuts

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with zinc-plated steel construction, extending service life in industrial environments
• Space-saving thin profile (5/16" height) ideal for applications with limited clearance without compromising strength
• Reliable coarse thread engagement with UNC 1/2"-13 specification for faster assembly and reduced cross-threading risks
• Consistent performance ensured by Class 2B thread fit, providing smooth installation and secure fastening
• Durable Grade 2 strength classification suitable for general-purpose industrial applications with moderate stress requirements
• Convenient external hex drive (3/4" width) allows for standard tool compatibility and straightforward installation
• Environmental compliance with RoHS 3 and REACH standards, ensuring safe usage in regulated industries

Professional Applications & Engineering Value

This zinc-plated steel thin hex nut delivers critical advantages in assembly-intensive environments where reliability and efficiency are paramount. The UNC coarse thread design accelerates installation in manufacturing lines, reducing labor time while maintaining secure connections in machinery, structural frameworks, and equipment maintenance. Its thin profile addresses spatial constraints in compact assemblies, such as electrical enclosures or automotive components, without sacrificing the durability expected from Grade 2 strength fasteners. The zinc plating provides a protective barrier against oxidation and wear, making it suitable for outdoor or humid conditions. Engineered for right-hand threading and external hex drive compatibility, it ensures seamless integration with standard tools, minimizing the risk of assembly errors and enhancing workflow consistency in B2B procurement scenarios.

Specification Summary & Compliance

This hex nut adheres to UNC 1/2"-13 coarse thread specifications with a Class 2B thread fit for consistent dimensional accuracy. Manufactured from zinc-plated steel with a Grade 2 strength rating, it meets industrial standards for moderate-load applications. Key dimensions include a 3/4" width across flats and 5/16" height. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety requirements in global supply chains.