S-91099A467 6-32 x 7/8" 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 80,000 psi tensile strength ensures reliable fastening under high-stress applications
• Precise Class 2A thread fit guarantees smooth installation and secure connections in UNC coarse threading
• Undercut flat head design provides flush mounting and reduced risk of surface damage
• 82° countersink angle allows for optimal seating in standard countersunk holes
• Phillips No. 2 drive enables efficient installation with common tools while minimizing cam-out
• Full threading along the 7/8" length offers maximum grip and adjustability in various material thicknesses

Professional Applications & Engineering Value

These 6-32 UNC flat head screws deliver critical performance in demanding industrial settings where corrosion resistance and mechanical strength are paramount. The passivated 18-8 stainless steel material prevents oxidation in humid or chemical-exposed environments, while the undercut flat head profile ensures a clean, flush finish that eliminates protrusion issues in machinery and equipment assemblies. With coarse UNC threading and Class 2A tolerance, these screws provide rapid installation and vibration resistance in metal framing, electrical enclosures, and automotive components. The combination of 80,000 psi tensile strength and Rockwell B80 hardness makes them suitable for applications requiring repeated disassembly without thread degradation.

Specification Summary & Compliance

Manufactured to ASME B18.6.3 specifications with Class 2A thread fit for consistent dimensional accuracy. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Features right-hand UNC coarse threads and standardized 82° countersink angle for interoperability with industry components.