S-90279A842 3/8"-16 x 1 1/2" 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
- Superior corrosion resistance with zinc-plated steel construction, extending service life in harsh industrial environments
- High tensile strength of 60,000 psi ensures reliable performance under heavy loads and vibration
- Class 2A thread fit with UNC coarse threading provides easier assembly and reduced cross-threading risks
- Rockwell B69 hardness rating maintains thread integrity and prevents stripping during installation
- Full threading along 1-1/2" length offers maximum grip and adjustment flexibility in various material thicknesses
- Phillips No. 4 drive compatibility enables efficient installation with common industrial tools
- Rounded head design minimizes surface damage and provides a finished appearance in visible applications
Professional Applications & Engineering Value
These zinc-plated steel rounded head screws deliver exceptional value in industrial assembly where corrosion resistance and mechanical reliability are critical. The 3/8"-16 UNC coarse thread configuration ensures rapid installation in metal frameworks, machinery, and structural components while maintaining Class 2A thread fit precision. The combination of 60,000 psi tensile strength and Rockwell B69 hardness addresses common failure points in high-vibration environments, preventing loosening and material fatigue. The fully threaded design provides consistent clamping force across varying material thicknesses, making these Phillips drive screws ideal for manufacturing equipment, automotive assemblies, and construction applications requiring dependable fastening solutions.
Specification Summary & Compliance
This fastener maintains Class 2A thread fit tolerance with UNC coarse threads (3/8"-16) and full compliance with ASME B18.6.3 manufacturing specifications. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets. Dimensional accuracy includes 1-1/2" length, 0.708" head diameter, and right-hand threading for standardized installation procedures.
