S-99117A970 1/4"-20 x 16" ASME B18.6.3 Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding environments
• Exceptional load-bearing capacity with 60,000 psi tensile strength to withstand heavy-duty applications
• Optimized driving efficiency with Phillips No. 3 drive for secure installation and reduced cam-out risk
• Reliable thread engagement with UNC coarse threading and Class 2A fit ensuring consistent fastening performance
• Enhanced durability with Rockwell B70 hardness providing excellent resistance to wear and deformation
• Versatile partial threading allowing for both secure clamping and adjustable positioning in assemblies
• Comprehensive compliance meeting ASME B18.6.3 specifications and environmental regulations including RoHS 3 and REACH

Professional Applications & Engineering Value

These zinc-plated steel rounded head screws deliver critical performance advantages for industrial applications where corrosion resistance and structural integrity are paramount. The 16-inch length and partial threading design provide exceptional versatility for construction, machinery assembly, and heavy equipment applications requiring extended reach and adjustable clamping force. The UNC coarse thread configuration ensures rapid installation and superior holding power in wood, metal, and composite materials, while the pan head profile offers a low-profile finish that resists snagging. With 60,000 psi tensile strength and Rockwell B70 hardness, these Phillips drive screws maintain their mechanical properties under sustained vibration and load conditions, making them ideal for applications where fastener failure is not an option.

Specification Summary & Compliance

This 1/4"-20 x 16" screw features precision Class 2A thread fit tolerances with UNC coarse threading and right-hand thread direction. Manufacturing complies with ASME B18.6.3 specifications for dimensional accuracy and performance standards. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.