S-91735A542 1/4"-20 x 1" ASME B18.6.3 Stainless Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction and passivated finish, ideal for harsh industrial and marine environments
• Exceptional mechanical strength delivering 80,000 psi tensile strength and Rockwell B85 hardness for reliable, long-lasting fastening
• Optimized thread engagement through fully threaded 1/4"-20 UNC coarse design and Class 2A fit for secure installations
• Efficient installation with No. 3 Phillips drive and rounded pan head design providing excellent torque transmission and reduced cam-out
• Regulatory compliance assurance meeting ASME B18.6.3 specifications and environmental standards including RoHS 3 and REACH
• Versatile application compatibility with standardized dimensions (1" length, 0.492" head diameter) for broad industrial use
• Enhanced durability through precision manufacturing and material selection for reduced maintenance and replacement costs

Professional Applications & Engineering Value

This 316 stainless steel rounded pan head Phillips screw addresses critical engineering challenges in corrosive environments through its marine-grade composition and passivated surface treatment. The combination of 80,000 psi tensile strength and Rockwell B85 hardness ensures reliable performance under vibration and load stress, while the fully threaded 1/4"-20 UNC coarse thread design provides maximum engagement in various substrates. The No. 3 Phillips drive with rounded pan head profile delivers superior torque transmission for efficient assembly operations. These features make it particularly valuable for industrial equipment, marine hardware, and chemical processing applications where corrosion resistance and mechanical integrity are paramount.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 2A thread fit and UNC coarse threading (1/4"-20), this fastener maintains strict adherence to ASME B18.6.3 specifications. The product fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets. Critical dimensions include 1" length, 0.492" head diameter, and standard pan head profile, all manufactured under quality-controlled processes for consistent performance in demanding applications.