S-91771A959 10-24 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 for extended service life in harsh environments
• High tensile strength of 80,000 PSI ensures reliable fastening performance under demanding mechanical loads
• Class 2A thread fit with UNC coarse threading provides smooth installation and secure holding power
• Phillips No. 2 drive design offers efficient torque transfer and reduced cam-out during installation
• 100° countersink angle with standard flat head profile enables flush mounting for clean, professional finishes
• Full threading along the 7/8" length delivers maximum grip and adjustment flexibility in various material thicknesses
• Rockwell B80 hardness rating maintains structural integrity and resistance to deformation under stress

Professional Applications & Engineering Value

These 10-24 UNC flat head screws deliver exceptional engineering value across industrial 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 marine equipment, food processing machinery, and outdoor installations. The combination of 80,000 PSI tensile strength and Rockwell B80 hardness ensures these fasteners maintain clamping force in high-vibration environments. The fully threaded design with coarse UNC threading offers excellent pull-out resistance in various substrates, while the Phillips No. 2 drive enables efficient installation in confined spaces. These screws solve common industrial challenges including material degradation, fastener failure, and installation inefficiency.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 2A thread fit tolerance and UNC coarse thread specifications. Complies with ASME B18.6.3 manufacturing standards for dimensional accuracy and performance. Meets environmental regulations including RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions and REACH (EC 1907/2006) compliance for chemical safety. The standard flat head profile with 100° countersink angle ensures proper seating in corresponding recesses.