S-94779A860 1/4"-20 x 1" 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 Black-Oxide coated 18-8 Stainless Steel, ideal for harsh industrial environments
- Exceptional holding power from fully threaded UNC coarse spacing, ensuring secure fastening in demanding applications
- High tensile strength of 70,000 psi and Rockwell B70 hardness for reliable performance under heavy loads
- Wide truss head design provides increased bearing surface, reducing the risk of surface damage and improving stability
- Easy installation and removal with No. 3 Phillips drive, minimizing slippage and tool wear
- Precision Class 2A thread fit for consistent, smooth engagement and reduced cross-threading risks
- Compliance with ASME B18.6.3, RoHS 3, and REACH ensures quality, safety, and environmental standards are met
Professional Applications & Engineering Value
Engineered for durability and reliability, these Black-Oxide 18-8 Stainless Steel truss head screws address common industrial challenges such as corrosion, vibration loosening, and high-stress conditions. The rounded truss head distributes clamping force evenly, preventing material distortion in sheet metal, electronics, and machinery assemblies. With fully threaded UNC coarse spacing, they offer rapid installation and superior resistance to pull-out in wood, plastic, and light metal applications. The Phillips drive ensures efficient torque transfer, while the Black-Oxide finish enhances wear resistance and reduces glare, making them ideal for automotive, marine, and outdoor equipment where longevity and compliance with ASME B18.6.3 standards are critical.
Specification Summary & Compliance
This screw features a 1/4"-20 UNC thread with Class 2A fit for precise dimensional accuracy and coarse spacing to maximize grip. Manufactured in accordance with ASME B18.6.3 specifications, it ensures consistent performance in industrial fastening. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it meets environmental and safety requirements for global supply chains.
