S-91879A032 1/2"-13 ASME B18.2.2, ASTM A194 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in harsh industrial environments
• Enhanced load distribution from extra-wide thin profile design, reducing surface pressure and material stress
• High-strength performance meeting ASTM Grade 2H requirements, ensuring reliable fastening under heavy loads
• Precision thread engagement with Class 2B fit and UNC coarse threads, enabling quick assembly and vibration resistance
• Standardized compatibility with ASME B18.2.2 specifications, guaranteeing interchangeability with industrial equipment
• Environmental compliance with RoHS 3 and REACH regulations, making it suitable for global supply chains
• Optimized tool access through external hex drive design, facilitating efficient installation with common wrenches

Professional Applications & Engineering Value

Engineered for demanding industrial applications, this 1/2"-13 UNC hex nut delivers critical performance advantages through its material and design specifications. The zinc-plated steel construction provides essential corrosion protection for outdoor equipment, machinery, and structural assemblies exposed to moisture or chemicals. Its extra-wide thin profile distributes clamping force more effectively across joined surfaces, preventing deformation in soft materials while maintaining a low-profile installation. The coarse thread design resists loosening under vibration, making it ideal for automotive, construction, and heavy equipment applications where reliability is paramount. Combined with ASTM Grade 2H strength certification, this fastener ensures joint integrity in high-stress environments while the standardized ASME B18.2.2 compliance guarantees proper fitment with existing industrial components.

Specification Summary & Compliance

This hex nut maintains Class 2B thread fit tolerance for consistent engagement with mating components. Manufacturing adheres to ASME B18.2.2 dimensional standards and ASTM A194 material specifications for quality assurance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, containing no restricted substances. With 1/2"-13 UNC coarse thread configuration and right-hand thread direction, it provides standardized compatibility across industrial fastener systems.