S-92224A117 4-40 x 9/16" ASME B18.6.3 Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with black oxide steel coating for reliable performance in demanding industrial environments
• Superior holding power through fully threaded design ensuring maximum engagement and vibration resistance
• Optimized drive efficiency with Phillips No. 1 drive providing secure tool engagement and reduced cam-out risk
• Precise thread compatibility with Class 2A UNC coarse threads enabling quick assembly and reliable mating with standard components
• Exceptional mechanical strength delivering 60,000 psi tensile strength and Rockwell B70 hardness for heavy-duty applications
• Streamlined installation with rounded pan head profile that sits flush while preventing snagging on equipment
• Regulatory compliance assurance meeting ASME B18.6.3 specifications and environmental standards including RoHS 3 and REACH

Professional Applications & Engineering Value

These 4-40 UNC coarse thread screws with black oxide steel construction address critical industrial fastening challenges where corrosion resistance and mechanical reliability are paramount. The fully threaded design ensures maximum surface contact along the entire shank, providing superior vibration resistance in machinery, automotive assemblies, and electronic enclosures. The rounded pan head profile with Phillips drive facilitates quick installation in tight spaces while maintaining a low-profile appearance. Engineered with Class 2A thread fit and coarse threading, these screws enable rapid assembly in production environments while maintaining precise alignment. The combination of 60,000 psi tensile strength and protective black oxide finish makes these fasteners ideal for applications requiring both mechanical integrity and environmental durability without compromising on regulatory compliance.

Specification Summary & Compliance

Manufactured to exacting ASME B18.6.3 standards with Class 2A thread fit tolerance for consistent performance. The inch-system specifications include 4-40 UNC coarse thread with 9/16" length and standard pan head profile. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures safe use across various industrial sectors. Threading conforms to Unified National Coarse standards with right-hand orientation for universal compatibility.