S-93190A285 3/8"-16 x 4 3/4" ASME B18.2.1 Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from 316 Stainless Steel construction, ideal for harsh environments and chemical exposure
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing performance
• Precision thread engagement with Class 2A fit and UNC coarse threads ensuring secure fastening and vibration resistance
• Optimized partial threading design provides maximum grip length while reducing weight and material usage
• Industry-standard compliance with ASME B18.2.1 specifications guarantees dimensional accuracy and interchangeability
• Enhanced safety and sustainability through RoHS 3 and REACH compliance, meeting strict environmental regulations
• Easy installation and removal with standard 9/16" external hex head design for common tool compatibility

Professional Applications & Engineering Value

This 3/8"-16 UNC hex head screw delivers critical performance advantages for industrial applications where corrosion resistance and structural integrity are paramount. The 316 Stainless Steel composition provides exceptional protection against chloride-induced stress corrosion cracking, making it ideal for marine environments, chemical processing equipment, and food-grade applications. The coarse UNC thread pattern combined with Class 2A thread fit ensures rapid installation and reliable performance in high-vibration settings. With partial threading optimizing the fastener's strength-to-weight ratio, this hex bolt provides superior clamping force distribution while minimizing material usage. The external hex drive design accommodates standard wrenches for efficient assembly in confined spaces, delivering consistent torque transmission and reducing installation time across manufacturing, construction, and heavy equipment maintenance operations.

Specification Summary & Compliance

This industrial-grade hex head screw features precise dimensional specifications including 3/8"-16 UNC coarse threads with Class 2A thread fit tolerance, 4 3/4" overall length with minimum 1" thread engagement, and 9/16" hex head width. Manufactured in compliance with ASME B18.2.1 standards for dimensional consistency and mechanical properties. The fastener meets RoHS 3 (2015/863/EU) compliance for hazardous substance restriction and REACH (EC 1907/2006) regulations for chemical safety, ensuring environmental responsibility while maintaining 70,000 psi tensile strength and Rockwell B70 hardness specifications.