S-92224A102 2-56 x 1/4" ASME B18.6.3 Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with Black Oxide Steel finish for reliable performance in demanding industrial environments
• Superior thread engagement through UNC coarse threading and Class 2A fit ensures secure fastening and vibration resistance
• Optimized drive efficiency with Phillips No. 1 drive design for smooth installation and reduced cam-out risk
• Exceptional mechanical strength delivering 60,000 psi tensile strength and Rockwell B70 hardness for heavy-duty applications
• Standardized dimensional accuracy meeting ASME B18.6.3 specifications for consistent performance and interchangeability
• Full-threaded design provides maximum grip length and load distribution across the entire fastener
• Comprehensive compliance with RoHS 3 and REACH environmental standards for safe, sustainable manufacturing

Professional Applications & Engineering Value

These 2-56 UNC rounded pan head Phillips screws deliver critical engineering advantages for precision assemblies requiring reliable fastening solutions. The Black Oxide Steel construction provides superior corrosion protection in industrial settings, while the coarse UNC threading ensures rapid installation and excellent vibration resistance in machinery, electronics, and equipment manufacturing. The combination of 60,000 psi tensile strength and Rockwell B70 hardness makes these fully threaded fasteners ideal for applications demanding both durability and precision. The rounded pan head profile with Phillips No. 1 drive offers a low-profile solution that accommodates standard driving tools while maintaining secure fastening integrity. These industrial-grade machine screws are engineered to prevent stripping and maintain clamping force in high-stress environments, making them particularly valuable for OEM manufacturing and maintenance applications where consistent performance is paramount.

Specification Summary & Compliance

Manufactured to exacting standards, these screws feature Class 2A thread fit tolerance for optimal assembly clearance and UNC coarse thread specifications. The 1/4" length and dimensional characteristics comply with ASME B18.6.3 mechanical screw standards. Environmental compliance is verified through RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) certifications, ensuring adherence to international regulatory requirements for hazardous substance restrictions.