S-96460A530 5/8"-18 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 harsh industrial environments and extends service life
• Enhanced load distribution thanks to the extra wide hex profile, reducing surface pressure and preventing joint loosening under vibration
• High-strength performance meeting ASTM Grade 2H requirements, ensuring reliable clamping force in heavy-duty applications
• Precision fine threading (5/8"-18 UNF) with Class 2B fit for smoother engagement and reduced risk of cross-threading during assembly
• Industry-standard compliance with ASME B18.2.2 and ASTM A194 specifications, guaranteeing consistent quality and interchangeability
• Optimized torque transmission through the external hex drive design, allowing for secure installation with standard wrench tools
• Excellent durability in right-hand threaded applications, maintaining integrity under repeated stress cycles and thermal variations

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these Grade 2H heavy-duty hex nuts provide critical solutions where vibration resistance and long-term reliability are paramount. The zinc yellow-chromate plated steel construction delivers exceptional corrosion protection in exposed applications such as construction equipment, agricultural machinery, and transportation infrastructure. The extra wide hex profile distributes clamping force more effectively across connected surfaces, preventing material deformation in soft substrates while the 5/8"-18 UNF fine threads offer superior resistance to loosening compared to coarse-thread alternatives. These nuts are particularly valuable in high-vibration assemblies where maintaining preload is essential for structural integrity, making them ideal for engine components, heavy machinery frames, and structural steel connections that require ASME B18.2.2 compliance and consistent performance under dynamic loading conditions.

Specification Summary & Compliance

This heavy-duty hex nut features precision Class 2B thread fit with 5/8"-18 UNF fine threading and right-hand thread direction. Dimensions include 1-1/16" width across flats and 39/64" height. Manufactured in compliance with ASME B18.2.2 dimensional standards and ASTM A194 material specifications, with mechanical properties meeting ASTM Grade 2H strength requirements. The zinc yellow-chromate plating provides RoHS and REACH compliant corrosion protection for industrial applications.