S-91770A843 10-32 x 2 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 for extended service life in harsh environments
• Exceptional mechanical strength delivering 70,000 psi tensile strength and Rockwell B70 hardness for reliable performance under heavy loads
• Optimized load distribution through the wide truss head design, reducing surface pressure and preventing material damage
• Secure fastening engagement with Class 2A thread fit and fine UNF threading, ensuring precise installation and vibration resistance
• Enhanced installation efficiency featuring Phillips No. 2 drive for compatibility with standard tools and reduced cam-out risk
• Regulatory compliance assurance meeting ASME B18.6.3 manufacturing standards while being fully RoHS 3 and REACH compliant
• Versatile partial threading allowing unthreaded shank sections for precise clamping applications and alignment control

Professional Applications & Engineering Value

These 10-32 UNF rounded truss head screws provide critical solutions for industrial applications where corrosion resistance and structural integrity are paramount. The passivated 18-8 stainless steel construction offers excellent protection against chemical exposure and atmospheric corrosion, making these fasteners ideal for marine, food processing, and outdoor equipment applications. The combination of fine UNF threading with Class 2A fit ensures secure fastening in materials where coarse threads might compromise integrity, while the wide truss head design distributes clamping force over a larger surface area, preventing damage to softer materials and reducing the need for additional washers. The partial threading allows for precise positioning and maximum unthreaded shank strength in demanding assembly scenarios.

Specification Summary & Compliance

Manufactured to exacting ASME B18.6.3 specifications with Class 2A thread fit tolerance ensuring consistent threading quality and installation performance. The 10-32 UNF fine thread configuration provides superior holding power in various materials. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations guarantees these fasteners meet international safety and sustainability standards for industrial use.