S-91770A894 12-24 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 from passivated 18-8 stainless steel construction, ideal for harsh industrial environments
- Exceptional load-bearing capability with 70,000 psi tensile strength and Rockwell B70 hardness for reliable performance
- Enhanced surface contact and stability due to wide rounded truss head design, reducing surface damage
- Quick and secure installation with Phillips No. 3 drive and fully threaded UNC coarse thread pattern
- Precise thread engagement ensured by Class 2A thread fit, minimizing cross-threading risks
- Broad industrial compliance meeting ASME B18.6.3 standards and environmental regulations including RoHS 3 and REACH
- Versatile 1-1/4" length with full threading for consistent fastening across various material thicknesses
Professional Applications & Engineering Value
Engineered for demanding industrial settings, this 12-24 UNC rounded truss head screw delivers exceptional reliability where vibration resistance and corrosion prevention are critical. The passivated 18-8 stainless steel material provides lasting protection against chemical exposure and moisture, making it ideal for outdoor equipment, marine hardware, and food processing machinery. Its wide truss head design distributes clamping force effectively, preventing surface damage on softer materials while the coarse UNC threads ensure rapid installation in production environments. With full threading along its 1-1/4" length, this fastener maintains consistent grip strength across varying material thicknesses, solving common alignment and stripping issues in assembly operations.
Specification Summary & Compliance
This screw maintains Class 2A thread fit tolerance for precise engagement and follows UNC coarse thread standards with 12-24 sizing. Manufacturing complies with ASME B18.6.3 specifications for dimensional accuracy and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial applications.
