S-91772A299 12-24 x 1 1/2" ASME B18.6.3 Stainless Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from passivated 18-8 stainless steel construction, ideal for harsh industrial environments
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing performance
• Optimized thread engagement with UNC coarse threading and Class 2A fit ensuring secure fastening and vibration resistance
• Efficient installation through Phillips No. 3 drive system combined with standard pan head profile
• Full 1-1/2" threading provides maximum grip length and uniform stress distribution across applications
• Regulatory compliance with ASME B18.6.3 standards and environmental regulations including RoHS 3 and REACH
• Right-hand thread design enables standard installation procedures and compatibility with existing fastener systems

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these 12-24 UNC coarse thread pan head screws deliver critical performance advantages where corrosion resistance and mechanical reliability are paramount. The passivated 18-8 stainless steel construction provides exceptional protection against oxidation and chemical exposure, making them ideal for marine equipment, food processing machinery, and outdoor infrastructure applications. The combination of fully threaded design and Class 2A thread fit ensures maximum surface contact and clamping force distribution, effectively preventing loosening under vibration stress. With their standard pan head profile and Phillips No. 3 drive, these screws offer quick installation while maintaining flush mounting capabilities. The coarse threading facilitates faster assembly in soft materials and reduces cross-threading risks during high-volume production operations.

Specification Summary & Compliance

This 1-1/2" pan head screw features precision 12-24 UNC coarse threads with Class 2A thread fit tolerance, manufactured to ASME B18.6.3 specifications. The fastener maintains dimensional accuracy with 0.216" thread diameter and standard pan head configuration (0.425" diameter, 0.151" height). Compliance certifications include RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring regulatory adherence for global industrial applications.