S-91770A582 1/4"-20 x 3 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, ideal for harsh environments and extended service life
- Exceptional holding power from 70,000 psi tensile strength and Rockwell B70 hardness, preventing fastener failure under heavy loads
- Enhanced load distribution thanks to the wide truss head design, reducing surface pressure and material damage
- Reliable and quick installation with Phillips No. 3 drive and fully threaded UNC coarse thread for efficient driving and strong grip
- Precise thread fit with Class 2A tolerance ensuring consistent engagement and vibration resistance in assemblies
- Compliance with industry standards including ASME B18.6.3, RoHS, and REACH, guaranteeing safety and environmental responsibility
- Versatile coarse threading for faster assembly and better performance in a variety of materials and applications
Professional Applications & Engineering Value
Engineered for demanding industrial and construction settings, this 1/4-20 UNC screw combines passivated 18-8 stainless steel with a wide truss head to address common challenges like corrosion, vibration loosening, and surface damage. The fully threaded coarse design allows for rapid installation and strong holding in wood, metal, and composite materials, while the Phillips drive ensures compatibility with standard tools. Its high tensile strength and hardness make it suitable for structural applications, machinery, and outdoor equipment where durability and corrosion resistance are critical, minimizing maintenance and replacement costs over time.
Specification Summary & Compliance
This screw features a 1/4"-20 UNC coarse thread with Class 2A thread fit for precise dimensional accuracy and reliable performance. It is manufactured in compliance with ASME B18.6.3 standards and meets environmental regulations including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring it is free from hazardous substances and safe for various industrial uses.
