S-96460A380 1/2"-20 ASME B18.2.2, ASTM A194 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc yellow-chromate plating that protects against rust and extends service life in harsh environments
• Enhanced durability and strength from ASTM Grade 2H certification, ensuring reliable performance under high stress and vibration
• Increased wrenching surface due to the extra wide hex profile, providing better torque application and reducing slippage during installation
• Precise thread engagement with Class 2B fine UNF threads, delivering excellent clamping force and vibration resistance in critical assemblies
• Industry-standard compliance meeting ASME B18.2.2 and ASTM A194 specifications for consistent quality and interchangeability
• Optimized for heavy-duty use with a 7/8" width and 31/64" height, offering robust fastening in demanding mechanical applications
• Easy installation and removal featuring external hex drive and right-hand thread direction for efficient maintenance and assembly

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these Grade 2H heavy-duty hex nuts address critical challenges like joint loosening under dynamic loads and corrosion-induced failure. The zinc yellow-chromate plated steel construction provides a durable barrier against moisture, chemicals, and atmospheric exposure, significantly extending fastener life in outdoor equipment, machinery, and structural applications. The extra wide hex profile distributes clamping force more effectively, reducing stress concentration and preventing deformation in soft materials or high-torque scenarios. Combined with fine UNF threads and Class 2B fit, these nuts maintain secure connections in vibrating systems such as automotive assemblies, industrial pumps, and heavy machinery, where reliability is non-negotiable.

Specification Summary & Compliance

This 1/2"-20 UNF hex nut features precise Class 2B thread fit per UNF standards, ensuring consistent engagement and load distribution. Manufacturing adheres to ASME B18.2.2 dimensional requirements and ASTM A194 material specifications, with full traceability for quality assurance. The ASTM Grade 2H certification guarantees high tensile strength and proven performance under pressure. Compliant with RoHS and REACH environmental directives, these nuts are suitable for global industrial supply chains requiring verified safety and durability standards.