S-91735A548 1/4"-20 x 2" ASME B18.6.3 Stainless Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance in harsh environments due to 316 stainless steel construction with passivated finish
• High-strength performance with 80,000 psi tensile strength and Rockwell B85 hardness for demanding applications
• Reliable fastening engagement through fully threaded UNC coarse threads with Class 2A fit for consistent installation
• Optimized drive efficiency with Phillips No. 3 drive style preventing cam-out during high-torque applications
• Enhanced clearance and appearance from rounded pan head design with standard profile
• Industry compliance assurance meeting ASME B18.6.3 specifications for dimensional accuracy and performance
• Environmental regulation compliance with RoHS 3 and REACH standards for safe industrial usage

Professional Applications & Engineering Value

This 316 stainless steel Phillips pan head screw delivers critical corrosion resistance in chemical processing, marine, and food industry applications where moisture and corrosive agents degrade ordinary fasteners. The passivated finish enhances surface durability while the fully threaded 1/4-20 UNC coarse thread provides maximum grip length in various material thicknesses. Engineers specify these rounded head screws for their combination of 80,000 psi tensile strength and compliance with ASME B18.6.3 standards, ensuring reliable performance in structural assemblies, equipment manufacturing, and maintenance operations where vibration resistance and long-term integrity are paramount.

Specification Summary & Compliance

Manufactured to Class 2A thread fit tolerances with 1/4-20 UNC coarse threads and 2" length. Complies with ASME B18.6.3 dimensional and mechanical specifications. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Features right-hand thread direction and Rockwell B85 hardness for consistent performance across industrial applications.