S-92224A226 1/4"-20 x 1 1/8" ASME B18.6.3 Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance from black oxide steel coating, extending service life in demanding industrial environments
• Superior holding power with 60,000 psi tensile strength and Rockwell B70 hardness for reliable fastening in high-stress applications
• Quick installation and removal through Phillips No. 3 drive system combined with standard pan head design
• Optimized thread engagement with fully threaded UNC coarse pattern and Class 2A fit for secure connections
• Broad compatibility with 1/4"-20 threaded components across machinery, equipment, and structural assemblies
• Regulatory compliance assurance meeting ASME B18.6.3 specifications and environmental standards (RoHS 3, REACH)
• Consistent performance through precision-manufactured right-hand threads and standardized dimensions

Professional Applications & Engineering Value

Engineered for industrial machinery, equipment assembly, and structural frameworks, these black oxide steel Phillips pan head screws address critical fastening challenges where vibration resistance and environmental durability are paramount. The fully threaded 1/4"-20 UNC coarse thread configuration ensures maximum thread contact area, preventing loosening under dynamic loads while facilitating rapid installation. The black oxide surface treatment provides essential corrosion protection in humid or chemically exposed environments, significantly reducing maintenance frequency. With 60,000 psi tensile strength and standardized ASME B18.6.3 compliance, these screws deliver reliable performance in automotive, manufacturing, and construction applications where fastener integrity directly impacts operational safety and equipment longevity.

Specification Summary & Compliance

Manufactured to ASME B18.6.3 standards with Class 2A thread fit tolerance for consistent mating with corresponding nuts and threaded holes. The 1/4"-20 UNC coarse thread maintains dimensional accuracy across the 1-1/8" fully threaded length. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in regulated industries. Material certification confirms Rockwell B70 hardness and 60,000 psi tensile strength verification.