S-91770A199 8-32 x 1" 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 environments and extending service life.
• Enhanced load distribution due to the wide truss head design, reducing surface pressure and preventing material damage.
• High tensile strength of 70,000 psi ensures reliable performance under heavy-duty mechanical stress.
• Excellent drive engagement with Phillips No. 2 drive, providing secure installation and reducing cam-out risks.
• Optimized thread grip from fully threaded 8-32 UNC coarse thread, delivering strong holding power in various materials.
• Consistent thread quality with Class 2A fit, ensuring easy assembly and interchangeability.
• Compliance with industry standards including ASME B18.6.3, RoHS 3, and REACH, guaranteeing safety and regulatory adherence.

Professional Applications & Engineering Value

This 8-32 x 1" passivated 18-8 stainless steel Phillips truss head screw is engineered to address common industrial challenges such as corrosion and vibration loosening. The passivated coating on the 18-8 stainless steel significantly enhances resistance to rust and chemical exposure, making it suitable for outdoor, marine, and chemical processing applications. Its truss head offers a larger bearing surface, distributing clamp load effectively to prevent damage to softer materials while maintaining a low profile. The UNC coarse thread and fully threaded design provide rapid installation and robust fastening in metals, plastics, and wood, reducing the risk of strip-out. With a Rockwell B70 hardness and 70,000 psi tensile strength, this screw ensures durability in high-stress assemblies, from machinery and electronics enclosures to automotive components, delivering long-term reliability and minimizing maintenance needs.

Specification Summary & Compliance

This screw features precise Class 2A thread fit per UNC coarse thread standards, ensuring dimensional accuracy and compatibility. It is manufactured in compliance with ASME B18.6.3 specifications for consistency and performance. Additionally, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free of hazardous substances and safe for various industrial and consumer applications.