S-91274A012 6-32 x 1/2" ASME B18.3, ASTM A574, ASTM B117 Alloy Steel Socket Head Screws
Alloy Steel Socket 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
- Exceptional corrosion resistance with zinc-flake coating that provides superior protection in harsh industrial environments
- Maximum thread engagement reliability through Class 3A thread fit precision for secure fastening in critical applications
- High-strength performance with 170,000 psi tensile strength and Rockwell C37 hardness for heavy-duty mechanical assemblies
- Optimized drive efficiency with 7/64" hex socket design allowing high torque application without stripping
- Full-threaded versatility enabling consistent clamping force along the entire 1/2" length
- Industry-standard compatibility with UNC coarse threading for easy installation and replacement
- Environmental compliance assurance meeting RoHS 3 and REACH regulations for global manufacturing requirements
Professional Applications & Engineering Value
These zinc-flake-coated alloy steel socket head cap screws deliver critical performance advantages in demanding applications where corrosion resistance and structural integrity are paramount. The Class 3A thread fit ensures precise engagement in UNC coarse threading applications, eliminating vibration-induced loosening in machinery, automotive components, and industrial equipment. The 170,000 psi tensile strength combined with Rockwell C37 hardness provides exceptional load-bearing capacity for high-stress assemblies, while the zinc-flake coating offers superior protection against chemical exposure and environmental degradation. The hex socket drive design enables high-torque installation in confined spaces, making these fully threaded fasteners ideal for precision engineering applications requiring reliable, long-term fastening solutions.
Specification Summary & Compliance
This 6-32 UNC thread socket head cap screw features precise Class 3A thread fit tolerances with coarse thread spacing and right-hand thread direction. Manufactured to ASME B18.3 dimensional specifications with material compliance to ASTM A574 for alloy steel and ASTM B117 for corrosion testing. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial applications.
