S-91770A201 8-32 x 1 1/4" ASME B18.6.3 Stainless Steel Truss Head Phillips Screws
Stainless Steel Truss Head Phillips Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments
- Exceptional holding power from 70,000 psi tensile strength and Rockwell B70 hardness for reliable, long-term fastening
- Wide bearing surface of the rounded truss head distributes load effectively, reducing material damage and pull-through
- Quick and secure installation with No. 2 Phillips drive, minimizing cam-out and tool slippage
- Precise thread engagement with UNC coarse threads and Class 2A fit for consistent performance and easy assembly
- Full threading along the 1-1/4" length ensures maximum grip and adjustability in various material thicknesses
- Compliance with major standards including ASME B18.6.3, RoHS 3, and REACH for guaranteed quality and environmental safety
Professional Applications & Engineering Value
Engineered for demanding applications, these 8-32 x 1-1/4" rounded truss head screws address common industrial challenges such as vibration loosening and corrosion. The passivated 18-8 stainless steel provides excellent resistance to rust and chemicals, extending service life in outdoor, marine, or chemical processing equipment. The wide truss head design offers a larger contact area, preventing sinkage in softer materials like plastics or sheet metal, while the UNC coarse threads and fully threaded shank ensure rapid installation and robust clamping force. Ideal for assembly lines, machinery, and electronic enclosures, these Phillips drive screws combine ease of use with high tensile strength, reducing maintenance needs and downtime in B2B settings.
Specification Summary & Compliance
This fastener features precise UNC coarse threads with a Class 2A fit for standard tolerance and reliable engagement. Manufactured to ASME B18.6.3 specifications, it ensures dimensional accuracy and performance consistency. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to environmental and safety standards for industrial use.
