S-91802A006 3/8"-16 x 1 1/4" ASME B18.6.3 Stainless Steel Phillips Oval Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from passivated 18-8 stainless steel construction, ideal for harsh industrial environments
• Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B80 hardness for heavy-duty applications
• Reliable thread engagement through Class 2A thread fit UNC coarse threading, ensuring secure fastening
• Enhanced installation efficiency with Phillips No. 4 drive and standard oval head profile for straightforward assembly
• Full-length threading provides maximum grip along the entire 1-1/4" length for versatile mounting scenarios
• Industry-standard compliance with ASME B18.6.3 specifications, guaranteeing dimensional accuracy and performance
• Environmental regulation adherence through RoHS 3 and REACH compliance, supporting sustainable procurement

Professional Applications & Engineering Value

This passivated 18-8 stainless steel oval head screw delivers critical engineering solutions where corrosion resistance and structural integrity are paramount. The UNC coarse threading and Class 2A thread fit enable rapid installation in metal, wood, and composite materials, reducing assembly time while maintaining vibration resistance. Its fully threaded design ensures uniform stress distribution, preventing loosening in dynamic loads common in machinery, automotive assemblies, and outdoor infrastructure. The Phillips No. 4 drive and oval head profile offer a flush finish, minimizing protrusion in applications requiring aerodynamic or aesthetic surfaces. Engineered to withstand demanding conditions, it addresses common failure points like rust and fatigue, extending service life in industrial fastening systems.

Specification Summary & Compliance

This product adheres to ASME B18.6.3 standards for dimensional consistency, featuring 3/8"-16 UNC coarse threads with Class 2A thread fit for precise tolerance. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety. The screw maintains a length of 1-1/4" and 82° countersink angle for optimal seating in standard applications.