S-93839A825 1/2"-20 ASME B18.2.2 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with Grade 8 strength classification, ensuring reliable performance in high-stress industrial applications
• Superior corrosion protection through zinc yellow-chromate plating, extending service life in harsh environments
• Space-saving thin profile design (5/16" height) ideal for applications with limited clearance while maintaining full functionality
• Precision UNF fine threading (1/2"-20) with Class 2B fit provides vibration resistance and secure fastening in dynamic conditions
• Standard-compliant manufacturing meeting ASME B18.2.2 specifications for consistent quality and interchangeability
• Optimized external hex drive (3/4" width) enables efficient installation and removal with standard tools
• Right-hand thread configuration ensures compatibility with standard assembly procedures and equipment

Professional Applications & Engineering Value

This Grade 8 hex nut delivers critical engineering solutions where high tensile strength and corrosion resistance are paramount. The zinc yellow-chromate-plated steel construction provides exceptional protection against environmental degradation, making it ideal for outdoor equipment, automotive assemblies, and industrial machinery exposed to moisture and chemicals. The UNF fine threading (1/2"-20) with Class 2B fit ensures precise engagement with mating components, reducing the risk of vibration-induced loosening in dynamic applications. The thin profile design addresses space-constrained installations without compromising structural integrity, while the standardized external hex drive facilitates rapid assembly and maintenance operations. Engineered to meet ASME B18.2.2 specifications, this fastener provides reliable performance in critical joints where failure is not an option.

Specification Summary & Compliance

This hex nut features precision 1/2"-20 UNF fine threading with Class 2B thread fit tolerance for consistent engagement. Manufacturing complies with ASME B18.2.2 standards ensuring dimensional accuracy and interchangeability. The Grade 8 strength classification guarantees minimum tensile strength of 150,000 psi. Physical dimensions include 3/4" width across flats and 5/16" height. The zinc yellow-chromate plating provides corrosion protection while maintaining compliance with RoHS and REACH environmental directives for industrial use.