S-90279A144 6-32 x 1/4" 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
- Superior corrosion resistance with zinc-plated steel construction, ensuring long-lasting performance in harsh industrial environments
- Excellent holding power from fully threaded UNC coarse thread design, providing reliable fastening in various materials
- High tensile strength of 60,000 psi delivers exceptional load-bearing capacity for demanding applications
- Precise Class 2A thread fit ensures smooth installation and consistent performance across multiple uses
- Rockwell B69 hardness rating maintains structural integrity under repeated stress and vibration
- Comfortable Phillips No. 2 drive allows for efficient installation with standard tools while minimizing cam-out
- Rounded head profile provides a finished appearance and reduces surface snagging in assembled products
Professional Applications & Engineering Value
These zinc-plated steel rounded head screws deliver exceptional value in industrial assembly and construction applications where corrosion resistance and high tensile strength are critical. The combination of UNC coarse threads and Class 2A thread fit ensures rapid installation with reduced cross-threading risk, while the fully threaded design maximizes grip length for superior holding power in sheet metal, plastic components, and electrical enclosures. The Phillips drive system provides reliable torque transfer during high-volume assembly operations, making these screws ideal for manufacturing environments requiring consistent, repeatable fastening performance. The rounded head profile minimizes stress concentration points and presents a clean, professional finish in visible applications.
Specification Summary & Compliance
This 6-32 x 1/4" screw features precision UNC coarse threads with Class 2A thread fit tolerance for consistent engagement. Manufacturing complies with ASME B18.6.3 specifications for dimensional accuracy and performance standards. The product meets RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions and REACH (EC 1907/2006) regulations for chemical safety, ensuring environmental responsibility and workplace safety compliance.
