S-90279A840 3/8"-16 x 3/4" ASME B18.6.3 Steel Round Head Phillips Screws
Steel Round 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
- Enhanced corrosion resistance with zinc plating for extended service life in demanding industrial environments
- Superior tensile strength of 60,000 psi ensures reliable, high-load fastening without failure
- Excellent drive engagement with Phillips No. 4 drive for secure installation and reduced cam-out risk
- Optimized thread performance with coarse UNC 3/8"-16 threading and Class 2A fit for quick assembly and vibration resistance
- Full-threaded design provides maximum grip and holding power across the entire fastener length
- Rounded head profile offers a finished appearance while minimizing surface snagging
- Regulatory compliance with ASME B18.6.3, RoHS 3, and REACH ensures material safety and quality consistency
Professional Applications & Engineering Value
These zinc-plated steel rounded head screws deliver exceptional engineering value in industrial applications where corrosion resistance and structural integrity are paramount. The Rockwell B69 hardness combined with 60,000 psi tensile strength provides reliable performance in heavy-duty assemblies, while the coarse UNC threading ensures rapid installation and superior vibration resistance in machinery, equipment, and structural frameworks. The fully threaded design maximizes surface contact for enhanced load distribution, making these Phillips drive screws ideal for applications requiring consistent clamping force across the entire fastener length. Their compliance with ASME B18.6.3 standards guarantees dimensional accuracy and interchangeability, critical for maintenance and replacement scenarios in manufacturing and construction environments.
Specification Summary & Compliance
This 3/8"-16 x 3/4" rounded head screw features precise Class 2A thread fit tolerances and coarse UNC threading manufactured to ASME B18.6.3 specifications. The fastener maintains full regulatory compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) requirements, ensuring environmental safety and material transparency. With right-hand thread direction and fully threaded construction, it delivers consistent performance across industrial applications requiring standardized inch-system fasteners.
