S-90273A440 3/8"-16 x 1 3/4" ASME B18.6.3 Steel Phillips Flat Head Screws
Steel Phillips Flat Head 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 for extended service life in demanding environments
- Exceptional holding power with 60,000 psi tensile strength and Rockwell B70 hardness for reliable heavy-duty applications
- Effortless installation with Phillips No. 4 drive and standard 82° countersink angle for flush mounting
- Optimized thread engagement through full threading and Class 2A coarse UNC threads for faster assembly
- Industry-standard compatibility with ASME B18.6.3 specifications ensuring consistent performance and interchangeability
- Environmental compliance meeting RoHS 3 and REACH regulations for safe, sustainable manufacturing
- Right-hand threading design for intuitive installation following conventional fastening practices
Professional Applications & Engineering Value
These 3/8"-16 UNC flat head screws deliver critical engineering solutions where flush surface mounting and high tensile strength are paramount. The zinc-plated steel construction provides essential corrosion protection for industrial equipment, machinery assemblies, and structural frameworks exposed to harsh operating conditions. The fully threaded design with coarse UNC threads ensures maximum thread engagement in various materials, reducing the risk of stripping while the standard 82° countersink angle guarantees proper seating in prepared holes. Particularly valuable in manufacturing, construction, and heavy equipment applications, these Phillips drive screws combine the reliability of ASME B18.6.3 compliance with the installation efficiency needed for high-volume assembly operations.
Specification Summary & Compliance
Manufactured to exacting Class 2A thread fit tolerances with UNC coarse thread specification (3/8"-16). Fully compliant with ASME B18.6.3 mechanical and dimensional requirements. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Features standard 82° countersink angle and right-hand thread direction with complete threading along the 1 3/4" length.
