S-92210A364 1-64 x 3/8" ASME B18.3, ASTM F879 Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish for extended service life in harsh environments
• Exceptional mechanical strength delivering 70,000 psi tensile strength and Rockwell B55 hardness for reliable load-bearing performance
• Precise Class 3A thread fit ensures secure fastening with minimal play and consistent engagement in demanding applications
• Optimized flush mounting with standard 82° countersink angle flat head design for smooth surface finishes
• Enhanced drive torque transmission through 0.050" hex drive for secure installation and reduced tool slippage
• Full threading along 3/8" length provides maximum grip range and adjustment flexibility in assembly operations
• Regulatory compliance assurance meeting ASME B18.3 specifications and environmental standards including RoHS 3 and REACH

Professional Applications & Engineering Value

These 1-64 UNC flat head screws deliver critical engineering solutions where corrosion resistance, mechanical strength, and precision fit are paramount. The combination of 18-8 stainless steel material with passivated finish provides exceptional protection against oxidation and chemical exposure, making them ideal for marine, chemical processing, and outdoor equipment applications. The coarse UNC thread pattern with Class 3A fit ensures rapid installation and reliable performance in vibration-prone environments, while the hex drive configuration prevents cam-out during high-torque assembly. These industrial fasteners solve common challenges of fastener degradation, installation efficiency, and regulatory compliance in critical manufacturing and maintenance operations.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 3A thread fit and UNC coarse thread profile. Complies with ASME B18.3 mechanical specifications and maintains full traceability to ASTM F879 standards. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) requirements, ensuring suitability for regulated industries and international markets. The 82° flat head profile conforms to industry-standard countersink specifications for seamless integration into designed assemblies.