S-92224A225 1/4"-20 x 1" ASME B18.6.3 Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black oxide steel coating for extended service life in demanding industrial environments
• Excellent drive engagement through Phillips No. 3 drive design, preventing cam-out and ensuring secure installation
• Optimal thread performance with UNC coarse spacing and Class 2A thread fit for reliable fastening in various materials
• Enhanced mechanical strength featuring Rockwell B70 hardness and 60,000 psi tensile strength for heavy-duty applications
• Maximum thread engagement through fully threaded design, providing consistent clamping force along the entire length
• Standard-compliant reliability manufactured to ASME B18.6.3 specifications for consistent quality and performance
• Environmental compliance meeting RoHS 3 and REACH regulations for safe use in regulated industries

Professional Applications & Engineering Value

This 1/4"-20 machine screw delivers exceptional engineering value through its black oxide steel construction and precision UNC coarse thread design. The combination of Rockwell B70 hardness and 60,000 psi tensile strength ensures reliable performance in high-stress applications where fastener failure is not an option. The Phillips pan head with No. 3 drive provides excellent torque transmission while the fully threaded configuration maximizes engagement in various material thicknesses. Ideal for industrial machinery, equipment assembly, and manufacturing applications, this ASME B18.6.3 compliant fastener solves critical challenges in vibration resistance, corrosion protection, and consistent clamping force distribution across demanding operational conditions.

Specification Summary & Compliance

This machine screw maintains precise Class 2A thread fit tolerance with UNC coarse spacing (1/4"-20 thread size) and right-hand thread direction. Manufacturing and quality control adhere to ASME B18.6.3 standards, ensuring dimensional accuracy and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for use in regulated industries and international markets requiring strict chemical substance control.