S-92186A853 3/4"-10 x 4 1/2" ASME B18.2.1 Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments including marine and chemical applications
• Exceptional mechanical strength delivering 70,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing performance
• Optimized assembly efficiency through UNC coarse threading and Class 2A thread fit for faster installation and reduced cross-threading risks
• Secure torque transmission with external hex drive and 1 1/8" head width enabling high-tightening force applications
• Enhanced design flexibility with partially threaded shank providing both clamping and unthreaded grip lengths
• Long-term durability backed by compliance with ASME B18.2.1 manufacturing standards for consistent quality
• Environmental responsibility through RoHS 3 and REACH compliance, ensuring safe use in regulated industries

Professional Applications & Engineering Value

This 3/4"-10 UNC hex head screw delivers critical performance advantages in demanding industrial settings 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 equipment, chemical processing plants, and coastal infrastructure. The coarse thread design ensures reliable engagement in softer materials and faster assembly cycles, while the partial threading offers precise clamp load distribution across joint interfaces. With its external hex drive and substantial head dimensions, this fastener withstands high torque requirements in heavy machinery, structural steel connections, and industrial equipment maintenance. Engineers specify this solution for applications requiring ASME B18.2.1 compliance where dimensional consistency and mechanical performance cannot be compromised.

Specification Summary & Compliance

This hex head screw features 3/4"-10 UNC coarse threads with Class 2A thread fit tolerance for reliable assembly compatibility. The 4-1/2" length includes a minimum 1 3/4" thread length with right-hand threading orientation. Manufacturing conforms to ASME B18.2.1 dimensional standards, ensuring interchangeability and precision. Environmental compliance is verified through RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming restriction of hazardous substances for industrial safety.