S-96640A258 2-56 x 3/8" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with Black-Oxide 18-8 Stainless Steel construction, ideal for harsh industrial environments
• Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B80 hardness for reliable load-bearing performance
• Optimized flush mounting featuring an undercut flat head profile and 82° countersink angle for seamless surface integration
• Enhanced driving efficiency with Phillips No. 1 drive design, reducing cam-out risks during installation
• Precision threading reliability with UNC coarse thread spacing and Class 2A fit ensuring consistent engagement
• Full-threaded design maximizing grip length and distribution across the entire 3/8" shank
• Regulatory compliance assurance meeting ASME B18.6.3, RoHS 3, and REACH standards for global industrial use

Professional Applications & Engineering Value

Engineered for demanding applications, these 2-56 UNC flat head Phillips machine screws deliver critical performance where corrosion resistance and high tensile strength are paramount. The Black-Oxide 18-8 Stainless Steel material provides lasting protection against oxidation and chemical exposure in manufacturing, electronics assembly, and outdoor equipment. The undercut flat head design with an 82° countersink angle ensures a flush, vibration-resistant fit that prevents snagging in tight spaces. With coarse UNC threading and full-length threads, installation is swift and secure, reducing assembly time while maintaining Class 2A thread fit precision. Ideal for securing panels, machinery components, and enclosures, these screws address common industrial challenges like material degradation and fastener failure under stress.

Specification Summary & Compliance

This screw maintains Class 2A thread fit tolerances per UNC coarse threading standards, with dimensions including 3/8" length, 0.162" head diameter, and No. 1 Phillips drive. Manufacturing adheres to ASME B18.6.3 specifications, ensuring dimensional consistency. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted hazardous substances for safe industrial and commercial use.