S-91500A302 0-80 x 1/4" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh chemical and marine environments
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B80 hardness for reliable load-bearing performance
• Enhanced durability through passivated surface finish that increases corrosion protection and extends service life
• Precise thread engagement with Class 2A thread fit and UNF fine threading for secure fastening in demanding applications
• Optimized flush mounting with standard 82° countersink angle and flat head design for smooth surface finishes
• Industry-standard compliance meeting ASME B18.6.3 specifications for dimensional accuracy and performance reliability
• Environmental responsibility with RoHS 3 and REACH compliance, ensuring safe use across regulated industries

Professional Applications & Engineering Value

These 316 stainless steel flat head screws deliver exceptional value in corrosive environments where standard fasteners fail. The combination of UNF fine threading and Class 2A thread fit ensures vibration-resistant connections in precision equipment, while the passivated finish provides an additional protective layer against chemical attack. Engineers specify these Phillips drive screws for marine equipment, chemical processing machinery, and food processing applications where both corrosion resistance and flush surface mounting are critical. The fully threaded design allows for maximum adjustment flexibility, making them ideal for assembly lines requiring consistent clamping force across varied material thicknesses.

Specification Summary & Compliance

This 0-80 UNF 1/4" flat head screw features precise Class 2A thread fit tolerances and complies with ASME B18.6.3 dimensional standards. Manufacturing follows strict quality controls to ensure consistent 82° countersink angle and standard flat head profile. The product is fully compliant with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations for chemical safety, making it suitable for global industrial applications requiring environmental responsibility.