S-91771A148 6-32 x 1/2" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with passivated 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
• Precision threading with UNC coarse threads and Class 2A fit ensures smooth installation and secure fastening
• Optimized flush mounting featuring standard flat head profile with 82° countersink angle for seamless surface integration
• Enhanced installation efficiency with Phillips No. 2 drive for secure tool engagement and reduced cam-out risk
• Full-threaded design provides maximum thread engagement along the entire 1/2" length for superior holding power
• Regulatory compliance assurance meeting ASME B18.6.3 standards and environmental regulations for global industrial use

Professional Applications & Engineering Value

These 6-32 flat head Phillips machine screws deliver exceptional engineering value in demanding applications where corrosion resistance and mechanical reliability are critical. The passivated 18-8 stainless steel construction provides superior protection against oxidation and chemical exposure, making them ideal for industrial equipment, electronic enclosures, and machinery subjected to harsh operating conditions. The combination of UNC coarse threading and Class 2A thread fit ensures rapid installation with consistent torque performance, while the 82° countersink angle allows for flush mounting in precision assemblies. With full threading along the entire 1/2" length, these screws maximize engagement in thin materials and provide reliable fastening in vibration-prone environments where loosening prevention is essential.

Specification Summary & Compliance

This flat head machine screw features precision 6-32 UNC coarse threading with Class 2A thread fit for standard industrial applications. Manufacturing specifications strictly adhere to ASME B18.6.3 standards, ensuring dimensional accuracy and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for global industrial markets and environmentally conscious manufacturing operations.