S-91770A077 2-56 x 7/16" 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 truss head design, reducing surface damage and improving joint integrity
- High tensile strength of 70,000 psi ensures reliable performance under significant mechanical stress
- Excellent thread engagement with Class 2A coarse UNC threads, providing secure fastening and vibration resistance
- Optimized installation efficiency using Phillips No. 1 drive, allowing for quick and precise assembly
- Full threading along the 7/16" length maximizes grip range and adaptability in various material thicknesses
- Compliance with major industry standards including ASME B18.6.3, ensuring consistent quality and interchangeability
Professional Applications & Engineering Value
These 2-56 UNC rounded truss head screws are engineered to address common industrial challenges such as material fatigue and environmental degradation. The passivated 18-8 stainless steel offers exceptional resistance to oxidation and chemical exposure, making them suitable for applications in electronics, machinery, and outdoor equipment where durability is critical. The coarse thread and Class 2A fit facilitate rapid assembly while maintaining strong holding power, reducing the risk of stripping in softer materials. The wide truss head distributes clamping force evenly, preventing surface damage and ensuring a secure fit in dynamic or high-vibration settings. These features collectively enhance product lifespan and reduce maintenance needs in demanding industrial applications.
Specification Summary & Compliance
Manufactured to precise dimensional standards, these screws feature UNC coarse threads with Class 2A tolerance for consistent fit and performance. They conform to ASME B18.6.3 specifications, ensuring reliability in mechanical fastening. Environmental and safety compliance is confirmed through RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) adherence, supporting use in regulated industries.
