S-91771A249 10-24 x 1 1/4" 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, ensuring long-term reliability in harsh environments
• High tensile strength of 80,000 psi provides exceptional load-bearing capacity for demanding industrial applications
• Rockwell B80 hardness maintains structural integrity and prevents deformation under stress
• Class 2A thread fit with UNC coarse threading enables quick installation and secure fastening in various materials
• Phillips No. 2 drive design offers efficient torque transfer and reduces cam-out during installation
• Full threading along 1-1/4" length ensures maximum grip and uniform stress distribution
• 82° countersink angle with standard flat head profile creates flush surface finishes for streamlined assemblies

Professional Applications & Engineering Value

These 10-24 UNC flat head screws deliver exceptional engineering value across industrial applications where corrosion resistance and structural integrity are paramount. The passivated 18-8 stainless steel construction provides superior protection against chemical exposure and atmospheric corrosion, making them ideal for marine equipment, food processing machinery, and outdoor structural assemblies. The combination of 80,000 psi tensile strength and Rockwell B80 hardness ensures reliable performance in high-vibration environments, while the coarse UNC threading with Class 2A fit facilitates rapid installation in both metallic and composite materials. The fully threaded design maximizes engagement depth, distributing mechanical stresses evenly to prevent joint failure in critical applications.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 2A thread fit and UNC coarse threading (10-24), these flat head screws maintain consistent ASME B18.6.3 specifications throughout production. The 82° countersink angle and standard flat head profile ensure proper seating in countersunk applications. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations confirms environmental responsibility and material safety, while the mechanical properties including 80,000 psi tensile strength and Rockwell B80 hardness meet rigorous industrial requirements.