S-90272A972 1/2"-13 x 1 1/2" ASME B18.6.3 Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc plating, extending service life in demanding industrial environments.
• High-strength fastening with 60,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing applications.
• Excellent thread engagement provided by the 1/2"-13 UNC coarse thread and Class 2A fit, ensuring secure and easy installation.
• Optimized drive performance with the Phillips No. 4 drive, reducing cam-out and improving torque transfer.
• Versatile pan head design offers a low-profile, rounded head for a flush finish and broad bearing surface.
• Full-threaded shank maximizes grip length and distributes stress evenly along the entire fastener.
• Regulatory compliance guarantees material safety and meets global engineering standards for quality assurance.

Professional Applications & Engineering Value

This zinc-plated steel pan head screw is engineered to address common industrial challenges such as vibration loosening and environmental degradation. The UNC coarse thread and Class 2A thread fit provide rapid assembly and robust holding power in materials like steel and aluminum, reducing installation time while maintaining joint integrity. The zinc plating offers a protective barrier against moisture and chemicals, making these Phillips drive screws ideal for outdoor equipment, machinery assembly, and structural frameworks where corrosion resistance and high tensile strength are critical. Its fully threaded design ensures consistent clamping force, preventing shear and fatigue failures in heavy-duty fastening applications.

Specification Summary & Compliance

This screw maintains precise Class 2A thread fit tolerances and conforms to ASME B18.6.3 specifications for dimensional accuracy and performance. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring the use of safe, environmentally responsible materials in its construction.