S-92210A133 5-44 x 3/8" 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 environments
• Precise thread engagement with Class 3A fit and UNF fine threads ensuring vibration resistance and reliable fastening
• High mechanical strength offering 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications
• Flush mounting capability with standard 82° countersink angle flat head design for smooth surface finishes
• Efficient installation using 5/64" hex drive for secure tool engagement and reduced stripping risk
• Full regulatory compliance meeting ASME B18.3 standards, RoHS 3, and REACH for global supply chain compatibility
• Consistent performance through fully threaded 3/8" length providing maximum grip across the entire fastener

Professional Applications & Engineering Value

These 5-44 UNF flat head screws deliver critical engineering solutions where precision fastening meets environmental challenges. The 18-8 stainless steel composition combined with passivated finish creates a robust barrier against corrosion, making them ideal for marine equipment, food processing machinery, and chemical processing applications where moisture and corrosive agents are present. The Class 3A thread fit with UNF fine threading ensures superior vibration resistance in dynamic systems while maintaining precise alignment in precision instruments and optical equipment. The flat head design with standard 82° countersink allows for seamless integration into aerodynamic surfaces and flush-mounted panels without compromising structural integrity. These industrial screws provide reliable performance in high-stress assemblies while meeting stringent industry standards for quality and safety.

Specification Summary & Compliance

Manufactured to exacting ASME B18.3 specifications with Class 3A thread fit tolerances ensuring precision engagement. The inch-system fasteners feature 5-44 UNF fine threads with complete threading along the 3/8" length. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations guarantees environmental safety and global market acceptance. Mechanical properties include 70,000 psi tensile strength and Rockwell B55 hardness for consistent performance in industrial applications.