S-91772A297 12-24 x 1 1/4" ASME B18.6.3 Stainless Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments
• Excellent tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibration
• Precision Class 2A thread fit provides consistent engagement and reduces cross-threading risks
• Full threading design delivers maximum holding power across the entire fastener length
• Rockwell B70 hardness maintains structural integrity and prevents deformation during installation
• Phillips No. 3 drive enables efficient installation with standard tools while minimizing cam-out
• Comprehensive compliance with ASME B18.6.3, RoHS, and REACH standards ensures quality and environmental safety

Professional Applications & Engineering Value

These 12-24 UNC coarse thread pan head screws deliver exceptional performance in demanding industrial applications where corrosion resistance and mechanical strength are critical. The passivated 18-8 stainless steel construction provides superior protection against rust and chemical exposure, making them ideal for outdoor equipment, marine environments, and chemical processing facilities. The coarse UNC threading ensures rapid installation and reliable performance in softer materials or applications requiring frequent disassembly. With their fully threaded design and Class 2A thread fit, these screws maintain consistent clamping force and prevent loosening under vibration, solving common fastening failures in machinery, electrical enclosures, and structural assemblies. The combination of 70,000 psi tensile strength and Rockwell B70 hardness ensures these fasteners withstand extreme mechanical stresses without compromising integrity.

Specification Summary & Compliance

This pan head screw features precision 12-24 UNC coarse threads with Class 2A fit for consistent engagement and reliable performance. Manufactured to ASME B18.6.3 specifications, these fasteners maintain dimensional accuracy and mechanical properties required for industrial applications. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industries. The passivated surface treatment on 18-8 stainless steel provides enhanced corrosion protection while maintaining the material's inherent strength characteristics.