S-91770A145 6-32 x 5/16" ASME B18.6.3 Stainless Steel Truss Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with passivated 18-8 stainless steel construction for extended service life in harsh environments
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing performance
• Enhanced fastening stability through the wide rounded truss head design that distributes pressure and resists counter-sinking
• Efficient installation with Phillips No. 2 drive system providing secure tool engagement and reduced cam-out risk
• Precision thread compatibility featuring UNC coarse threads with Class 2A fit for consistent engagement and vibration resistance
• Full-threaded design ensuring maximum grip length and holding power across the entire fastener
• Regulatory compliance meeting ASME B18.6.3 specifications and environmental standards including RoHS 3 and REACH

Professional Applications & Engineering Value

This 6-32 machine screw delivers critical performance advantages for industrial assembly applications where corrosion resistance and mechanical reliability are paramount. The passivated 18-8 stainless steel construction provides excellent protection against oxidation and chemical exposure, making it ideal for electronics enclosures, machinery panels, and outdoor equipment. The rounded truss head with wide profile offers superior clamping distribution while the UNC coarse threads ensure rapid installation and secure fastening in various materials. With fully threaded design and Class 2A thread fit, this fastener maintains consistent torque performance and vibration resistance in demanding applications from automotive components to industrial control systems.

Specification Summary & Compliance

This machine screw features precision 6-32 UNC coarse threads with Class 2A thread fit tolerance for reliable engagement. Manufacturing complies with ASME B18.6.3 standards for dimensional accuracy and performance. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets. The combination of 70,000 psi tensile strength and Rockwell B70 hardness provides verified mechanical performance for industrial applications.