S-91772A943 1/4"-28 x 7/8" ASME B18.6.3 Stainless Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to passivated 18-8 stainless steel construction, ideal for harsh industrial environments
• Exceptional tensile strength of 70,000 psi ensures reliable performance under high-stress applications
• Precision Class 2A thread fit provides consistent engagement and reduces cross-threading risks
• Full threading design offers maximum grip length and uniform load distribution
• Rockwell B70 hardness maintains structural integrity and resists deformation during installation
• No. 3 Phillips drive enables efficient installation with standard industrial tools
• Comprehensive compliance with ASME B18.6.3, RoHS 3, and REACH ensures regulatory acceptance

Professional Applications & Engineering Value

This 1/4"-28 UNF fine thread screw delivers critical performance advantages for industrial assembly applications where corrosion resistance and mechanical strength are paramount. The passivated 18-8 stainless steel construction provides exceptional protection against oxidation and chemical exposure, making it ideal for marine, food processing, and outdoor equipment applications. The rounded pan head with Phillips drive combines aesthetic appeal with practical installation efficiency, while the fully threaded design ensures maximum engagement in various material thicknesses. Engineered to ASME B18.6.3 standards, this fastener maintains dimensional consistency across production batches, reducing assembly line delays and ensuring reliable performance in critical joints.

Specification Summary & Compliance

This industrial-grade fastener features 1/4"-28 UNF fine threads with Class 2A tolerance for precision fit, manufactured to ASME B18.6.3 specifications. The screw maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial applications. With complete threading along the 7/8" length and mechanical properties including 70,000 psi tensile strength and Rockwell B70 hardness, this component meets rigorous industrial standards for reliability and performance.