S-91785A542 1/4"-20 x 1" 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 with 18-8 Stainless Steel and passivated finish, ideal for harsh environments and extended service life.
- High tensile strength of 100,000 psi ensures reliable performance under heavy loads and vibration.
- Wide truss head design provides increased bearing surface for better load distribution and reduced risk of surface damage.
- Class 2A thread fit with UNC coarse threading offers easy assembly, quick installation, and consistent engagement.
- Full threading along the 1" length allows for maximum grip and adjustability in various material thicknesses.
- Compliance with ASME B18.6.3, RoHS 3, and REACH guarantees adherence to industry standards and environmental safety.
- Rockwell B100 hardness enhances durability and resistance to wear in demanding applications.
Professional Applications & Engineering Value
Engineered for demanding industrial settings, these 1/4"-20 UNC rounded truss head screws address common challenges like material fatigue and corrosion. The 18-8 stainless steel composition, combined with a passivated finish, provides excellent resistance to rust and chemicals, making them suitable for outdoor equipment, marine hardware, and food processing machinery. The wide truss head distributes clamping force effectively, preventing surface indentation on softer materials, while the coarse UNC threads and Class 2A fit ensure quick, secure fastening in wood, metal, and plastic assemblies. This design minimizes installation time and maintenance, offering long-term reliability in heavy-duty applications.
Specification Summary & Compliance
This screw features precise Class 2A thread fit and UNC coarse threading with a diameter of 0.25" and length of 1", ensuring dimensional accuracy per ASME B18.6.3 standards. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to environmental and safety requirements for industrial use.
