S-90271A835 10-32 x 1 1/4" ASME B18.6.3 Steel Truss Head Slotted Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in harsh industrial environments
• Enhanced load distribution through wide truss head design that minimizes surface damage and prevents pull-through
• Reliable fastening performance with Class 2A thread fit ensuring precise engagement and vibration resistance
• Maximum holding power from fully threaded design that provides complete engagement along the entire 1-1/4" length
• High-strength durability with 60,000 psi tensile strength and Rockwell B69 hardness for demanding applications
• Easy installation and removal with standard slotted drive compatible with common hand tools
• Regulatory compliance assurance meeting ASME B18.6.3 standards plus RoHS 3 and REACH environmental regulations

Professional Applications & Engineering Value

These 10-32 UNF rounded truss head screws deliver exceptional engineering value across industrial applications where vibration resistance and reliable fastening are critical. The zinc-plated steel construction provides essential corrosion protection for machinery, electrical enclosures, and assembly lines exposed to moisture or chemicals. The unique truss head design offers a wider bearing surface than standard rounded heads, distributing clamp load effectively to prevent damage to softer materials while maintaining a low-profile appearance. The fine thread configuration ensures superior holding power in metal-to-metal applications and provides more precise adjustment capabilities. With fully threaded construction and Class 2A thread fit, these screws maintain consistent engagement throughout their length, eliminating weak points that can compromise structural integrity in vibrating equipment or high-stress assemblies.

Specification Summary & Compliance

This 1-1/4" length screw features precise 10-32 UNF fine threads with Class 2A thread fit tolerance per ASME standards, ensuring consistent performance and interchangeability. Manufacturing complies with ASME B18.6.3 specifications for dimensional accuracy and mechanical properties. The product meets RoHS 3 (2015/863/EU) compliance for restricted substance control and REACH (EC 1907/2006) regulations regarding chemical safety, making these fasteners suitable for global industrial applications with environmental compliance requirements.