S-91770A879 3/8"-16 x 2 1/2" 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, ensuring long-term reliability in harsh environments.
- Enhanced load distribution from the wide rounded truss head design, reducing surface pressure and material damage.
- High tensile strength of 70,000 psi and Rockwell B70 hardness for dependable performance under heavy-duty mechanical stress.
- Secure and efficient fastening with coarse UNC threads and Class 2A fit, providing excellent grip and vibration resistance.
- Easy installation and removal using the Phillips No. 4 drive, minimizing tool slippage and assembly time.
- Partial threading design allows for precise clamping control, ideal for applications requiring adjustable grip length.
- Compliance with ASME B18.6.3, RoHS 3, and REACH ensures consistent quality, safety, and environmental responsibility.
Professional Applications & Engineering Value
This 3/8"-16 UNC Rounded Truss Head Screw is engineered to address common industrial challenges such as corrosion, vibration loosening, and high-stress demands. The Passivated 18-8 Stainless Steel material offers excellent resistance to rust and chemicals, making it suitable for outdoor, marine, and chemical processing equipment. The coarse thread and Class 2A fit enhance holding power in soft materials or where frequent disassembly is needed, while the wide truss head distributes load effectively to prevent surface damage. Ideal for assembly lines, machinery, and structural frameworks, this screw ensures reliable fastening in industrial applications where durability and compliance are critical.
Specification Summary & Compliance
This screw adheres to precise dimensional standards, including UNC coarse threads with Class 2A thread fit for consistent engagement and tolerance. It is manufactured in compliance with ASME B18.6.3 specifications, ensuring mechanical integrity and interchangeability. Additionally, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental compliance for global industrial use.
