S-91772A550 1/4"-20 x 2" ASME B18.6.3 Stainless Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing performance
• Optimized installation efficiency through Phillips No. 3 drive and pan head design for secure tool engagement
• Precision thread compatibility with UNC coarse 1/4"-20 threading and Class 2A fit ensuring consistent fastening
• Full-threaded design providing maximum grip length and uniform stress distribution across applications
• Regulatory compliance assurance meeting ASME B18.6.3 standards and environmental regulations (RoHS 3, REACH)
• Right-hand thread direction enabling standard installation procedures and compatibility with common components

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these passivated 18-8 stainless steel screws deliver critical corrosion protection where moisture, chemicals, or outdoor exposure would degrade ordinary fasteners. The fully threaded UNC coarse design ensures rapid installation and superior withdrawal resistance in metal assemblies, machinery, and structural frameworks. With 70,000 psi tensile strength and Rockwell B70 hardness, they maintain clamping force under vibration and dynamic loads. The pan head with Phillips No. 3 drive provides reliable torque transmission while the Class 2A thread fit guarantees consistent engagement without binding. Ideal for manufacturing equipment, automotive components, and marine hardware where durability and regulatory compliance are paramount.

Specification Summary & Compliance

This 1/4"-20 x 2" fully threaded screw maintains Class 2A thread fit tolerance per UNC standards with right-hand coarse threading. Manufacturing complies with ASME B18.6.3 specifications for dimensional accuracy and mechanical properties. The product is RoHS 3 (2015/863/EU) compliant and meets REACH (EC 1907/2006) requirements regarding hazardous substances, ensuring environmental responsibility in industrial supply chains.