S-91785A548 1/4"-20 x 1 3/4" ASME B18.6.3 Stainless Steel Truss Head Slotted Screws
Stainless Steel Truss Head Slotted 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 18-8 Stainless Steel and passivated finish, ensuring long-term reliability in harsh environments.
- Exceptional load-bearing capability with 100,000 psi tensile strength and Rockwell B100 hardness for demanding applications.
- Enhanced clamping force and stability due to the wide truss head design, distributing pressure over a larger surface area.
- Easy installation and removal with a standard slotted drive, compatible with common hand and power tools.
- Reliable thread engagement from fully threaded UNC coarse spacing and Class 2A fit, reducing cross-threading risks.
- Broad industry compliance meeting ASME B18.6.3, RoHS 3, and REACH standards for safe, regulated use.
- Durable, right-hand threading ensures consistent performance in high-vibration and heavy-duty assemblies.
Professional Applications & Engineering Value
This 1/4-20 UNC Rounded Truss Head Screw is engineered to address common industrial challenges like vibration loosening and material degradation. The 18-8 Stainless Steel construction, combined with a passivated finish, provides excellent resistance to rust and chemical exposure, making it ideal for outdoor equipment, marine hardware, and food processing machinery. The wide truss head offers a larger bearing surface, reducing the risk of surface damage and improving load distribution in sheet metal, plastics, and composite assemblies. With coarse threading and full-length threads, it ensures quick installation and secure fastening in high-stress environments, minimizing downtime and maintenance costs.
Specification Summary & Compliance
This screw adheres to Class 2A thread fit and UNC coarse thread standards for precise dimensional accuracy. It is manufactured in compliance with ASME B18.6.3 specifications and is fully RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, ensuring environmental safety and regulatory adherence in industrial applications.
