S-92198A731 1/2"-13 x 4 3/4" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh industrial environments
• Superior mechanical strength with 80,000 psi tensile strength and Rockwell B70 hardness to withstand heavy loads and stress
• Reliable thread engagement with Class 2A thread fit ensuring precise mating and vibration resistance in critical applications
• Easy installation and removal with external hex drive and 3/4" head width for standard wrench compatibility
• Optimized load distribution through partial threading design that concentrates strength where needed most
• Industry-standard compatibility with UNC coarse threads and 1/2"-13 specification for seamless integration with existing equipment
• Environmental compliance assurance meeting RoHS 3 and REACH regulations for safe, sustainable manufacturing

Professional Applications & Engineering Value

This 1/2"-13 UNC hex head screw delivers critical engineering solutions for industrial applications where corrosion resistance and structural integrity are paramount. The 18-8 stainless steel composition provides excellent protection against rust and chemical exposure in manufacturing facilities, marine environments, and outdoor installations. With its coarse thread design and partial threading, this fastener offers superior holding power in softer materials while preventing thread stripping. The external hex drive configuration ensures reliable torque transmission during installation, making it ideal for heavy machinery assembly, structural steel connections, and equipment maintenance where vibration resistance and long-term reliability are essential. Engineered to meet ASME B18.2.1 specifications, this screw provides consistent performance across industrial applications requiring dependable, high-strength fastening solutions.

Specification Summary & Compliance

This hex head screw features precise Class 2A thread fit tolerances with UNC coarse threads measuring 1/2"-13. Manufactured in compliance with ASME B18.2.1 standards for dimensional accuracy and mechanical properties. The product meets RoHS 3 (2015/863/EU) compliance for restricted substances and REACH (EC 1907/2006) regulations for chemical safety. With a total length of 4 3/4" and minimum thread length of 1 1/4", this inch-system fastener delivers reliable performance in industrial applications requiring standardized specifications.