S-91879A033 5/8"-11 ASME B18.2.2, ASTM A194 Hex Nuts
Hex Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Exceptional load distribution due to the extra-wide thin profile, reducing stress concentrations and preventing joint failure in heavy-duty assemblies.
- Superior corrosion resistance from zinc-plated steel construction, ensuring long-term reliability in harsh industrial environments.
- High-strength performance with ASTM Grade 2H certification, providing dependable clamping force for critical applications.
- Precise thread engagement with Class 2B UNC coarse threads, enabling quick installation and vibration resistance.
- Broad compliance assurance meeting ASME B18.2.2 and ASTM A194 standards, guaranteeing dimensional accuracy and material integrity.
- Environmental responsibility with RoHS 3 and REACH compliance, supporting sustainable manufacturing practices.
- Optimized size efficiency at 1 1/16" width and 23/64" height, offering space-saving benefits without compromising strength.
Professional Applications & Engineering Value
This 5/8"-11 UNC hex nut delivers critical engineering value by addressing common industrial fastening challenges. The zinc-plated steel construction combats corrosion in demanding environments like outdoor machinery, construction equipment, and marine applications, while the extra-wide thin profile maximizes surface contact to distribute loads evenly—preventing loosening under vibration and dynamic stresses. With ASTM Grade 2H strength and coarse threading, it ensures rapid assembly and reliable performance in heavy-duty structural connections, automotive frames, and industrial machinery where high-strength and corrosion-resistant fasteners are essential for safety and durability.
Specification Summary & Compliance
This hex nut adheres to Class 2B thread fit and UNC coarse thread standards (5/8"-11), ensuring precise dimensional accuracy per ASME B18.2.2. Manufactured under ASTM A194 and strength-rated as ASTM Grade 2H, it meets rigorous mechanical and material specifications. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmental and safety standards in global industrial supply chains.
