S-92210A808 5/8"-11 x 3 1/2" ASME B18.3 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 long-lasting performance in harsh environments
• Exceptional load-bearing capability with 70,000 psi tensile strength and Rockwell B55 hardness for reliable heavy-duty applications
• Precise thread engagement with Class 3A thread fit ensuring secure fastening and vibration resistance
• Easy installation and removal with 3/8" hex drive providing positive torque transfer and reduced tool slippage
• Optimal flush mounting with standard 82° countersink angle for seamless surface integration
• Full-length threading offering maximum grip length and adjustment flexibility in various material thicknesses
• Industry compliance assurance meeting ASME B18.3 standards with RoHS 3 and REACH environmental regulations

Professional Applications & Engineering Value

This 18-8 stainless steel flat head screw delivers critical engineering solutions for industrial applications where corrosion resistance, high tensile strength, and precise fit are paramount. The passivated finish significantly enhances the natural corrosion resistance of stainless steel, making it ideal for chemical processing, marine environments, and food processing equipment. The Class 3A thread fit with UNC coarse threading provides superior vibration resistance in heavy machinery, structural assemblies, and transportation equipment. The combination of 70,000 psi tensile strength and fully threaded design ensures maximum load distribution and pull-out resistance, while the hex drive configuration allows for high-torque installation in confined spaces. These flat head screws solve common fastening challenges by maintaining integrity under stress while meeting strict industry specifications.

Specification Summary & Compliance

This fastener maintains Class 3A thread fit precision per UNC standards with 5/8"-11 coarse threading and right-hand direction. Manufacturing complies with ASME B18.3 specifications for dimensional accuracy and performance. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, meeting current environmental regulations for industrial components. Additional specifications include 82° countersink angle, 3-1/2" length, and full threading throughout the shank length.