S-92210A715 1/2"-13 x 1 1/8" 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, ideal for harsh industrial environments
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B55 hardness for reliable performance under heavy loads
• Precise thread engagement with Class 3A fit and UNC coarse threads ensuring vibration resistance and secure fastening
• Optimized flush installation featuring an 82° countersink angle and flat head design for smooth, recessed surfaces
• Efficient installation and removal with 5/16" hex drive providing superior torque transmission and reduced tool slippage
• Full threading coverage along the 1 1/8" length maximizes grip strength and load distribution
• Regulatory compliance assurance meeting ASME B18.3, RoHS 3, and REACH standards for quality and environmental safety

Professional Applications & Engineering Value

These 1/2"-13 UNC flat head screws deliver critical engineering solutions where surface flushness, corrosion resistance, and high tensile strength are paramount. The 18-8 stainless steel material combined with a passivated finish provides excellent protection against oxidation and chemical exposure, making them suitable for marine, chemical processing, and outdoor equipment applications. The Class 3A thread fit and coarse UNC threading ensure rapid assembly and superior vibration resistance in heavy machinery, structural frameworks, and transportation equipment. The 82° countersink angle and flat head profile allow for seamless integration into tapered recesses, eliminating protrusions that could interfere with moving parts or aesthetic requirements. Engineered to withstand demanding operational conditions, these fully threaded screws with hex drive facilitate efficient maintenance and disassembly in industrial maintenance and OEM manufacturing.

Specification Summary & Compliance

This product maintains Class 3A thread fit per UNC standards with 1/2"-13 coarse threading and right-hand direction. Manufacturing adheres to ASME B18.3 specifications for dimensional accuracy, including head diameter (0.938"), length (1 1/8"), and drive size (5/16"). Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and restricted substance control.