S-91770A950 12-24 x 1" 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
- Enhanced load distribution from the wide rounded truss head design, preventing surface damage and pull-through
- Reliable fastening performance with UNC coarse threading that resists loosening under vibration and provides quick installation
- High mechanical strength offering 70,000 psi tensile strength and Rockwell B70 hardness for demanding applications
- Secure torque transmission via No. 3 Phillips drive, ensuring consistent tightening without stripping
- Precision thread fit with Class 2A tolerance for smooth assembly and reliable engagement in coarse thread applications
- Full regulatory compliance meeting ASME B18.6.3 standards and environmental regulations including RoHS 3 and REACH
Professional Applications & Engineering Value
These rounded truss head screws deliver exceptional engineering value in applications requiring vibration resistance and surface protection. The passivated 18-8 stainless steel construction provides excellent corrosion resistance for outdoor equipment, marine components, and chemical processing facilities where environmental exposure is a concern. The UNC coarse threading ensures rapid installation and secure fastening in materials where fine threads might strip or fail, while the wide truss head design distributes clamping force effectively across softer materials without sinking or damage. With their 70,000 psi tensile strength and Rockwell B70 hardness, these industrial screws maintain structural integrity in heavy machinery, electrical enclosures, and transportation equipment where reliability is critical.
Specification Summary & Compliance
Manufactured to precise Class 2A thread fit standards with UNC coarse threading (12-24 size) and full threading along the 1" length. Complies with ASME B18.6.3 mechanical specifications and maintains compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for safe industrial use.
