S-91770A857 10-24 x 3 1/2" 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, ideal for harsh industrial environments and outdoor applications.
• Exceptional mechanical strength offering 70,000 psi tensile strength and Rockwell B70 hardness for reliable performance under heavy loads.
• Enhanced load distribution thanks to the wide rounded truss head design, reducing surface pressure and preventing material damage.
• Optimized driving efficiency with No. 2 Phillips drive, ensuring secure installation and minimizing cam-out risks during assembly.
• Quick and secure fastening facilitated by UNC coarse threading and Class 2A fit, providing excellent thread engagement and vibration resistance.
• Versatile partial threading allowing precise control over clamping force, making it suitable for a wide range of industrial assembly tasks.
• Full regulatory compliance with ASME B18.6.3 standards, RoHS 3, and REACH, ensuring safety and environmental responsibility.

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these 10-24 x 3 1/2" rounded truss head screws deliver outstanding reliability in applications where corrosion resistance and structural integrity are critical. The passivated 18-8 stainless steel material provides long-term durability against moisture, chemicals, and temperature variations, significantly reducing maintenance costs and downtime. The combination of UNC coarse threading and Class 2A fit ensures rapid installation and secure fastening in metals, plastics, and composite materials, while the partially threaded design allows precise adjustment in assemblies requiring specific clamp lengths. Ideal for machinery, electrical enclosures, and structural frameworks, these screws solve common issues like thread stripping, galvanic corrosion, and loosening under vibration, making them a trusted choice for OEMs and maintenance teams seeking consistent performance.

Specification Summary & Compliance

This screw features precise UNC coarse threading with Class 2A fit for consistent dimensional accuracy and reliable engagement. It is manufactured in compliance with ASME B18.6.3 specifications, ensuring interchangeability and performance consistency. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety for use in various industrial and consumer applications without hazardous substances.