S-91771A163 6-32 x 3" 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 for extended service life in harsh environments
• High tensile strength of 80,000 psi ensures reliable load-bearing capacity and structural integrity in demanding applications
• Rockwell B80 hardness provides excellent wear resistance and durability against mechanical stress
• Class 2A thread fit with UNC coarse threading enables quick assembly and secure fastening in various materials
• 82° countersink angle with standard flat head profile allows for flush mounting and clean aesthetic finish
• Phillips No. 2 drive design offers efficient torque transfer and reduced cam-out during installation
• Partial threading configuration provides optimal grip length control for precise clamping force distribution

Professional Applications & Engineering Value

These 6-32 UNC flat head screws deliver exceptional engineering value through their passivated 18-8 stainless steel composition, specifically engineered to combat corrosion in industrial environments where moisture, chemicals, or outdoor exposure are concerns. The partially threaded design with coarse UNC threading ensures rapid installation while maintaining superior pull-out resistance in metal, plastic, and composite assemblies. The flat head profile with 82° countersink creates seamless surface finishes critical for applications requiring aerodynamic profiles or hygiene standards. With Phillips drive compatibility, these fasteners streamline assembly processes in electronics enclosures, machinery panels, and structural frameworks where reliability and corrosion resistance are paramount.

Specification Summary & Compliance

Manufactured to exacting Class 2A thread fit tolerances with UNC coarse thread specifications, these screws guarantee precise dimensional accuracy and consistent performance. The products strictly adhere to ASME B18.6.3 manufacturing standards for dimensional uniformity and mechanical properties. Environmental compliance is verified through RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) certifications, ensuring hazardous substance restrictions are met for global industrial applications.