S-91274A024 6-32 x 7/8" 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 tensile strength of 170,000 psi ensures reliable performance in high-stress industrial applications, reducing the risk of fastener failure.
- Superior corrosion resistance from the zinc-flake coating extends service life, even in harsh or outdoor environments.
- Precise Class 3A thread fit provides tighter tolerances for secure, vibration-resistant assemblies with minimal play.
- High hardness (Rockwell C37) offers excellent wear resistance, maintaining thread integrity through repeated use.
- Hex socket drive design allows for easy installation and high torque application in confined spaces.
- Compliance with ASME B18.3 and ASTM standards guarantees consistent quality and interchangeability for engineering projects.
- RoHS 3 and REACH compliance ensures environmental safety and meets global regulatory requirements for industrial components.
Professional Applications & Engineering Value
This 6-32 UNC thread socket head cap screw is engineered to address critical challenges in heavy-duty machinery, automotive, and aerospace assemblies. The zinc-flake-coated alloy steel construction provides robust protection against corrosion and chemical exposure, significantly reducing maintenance needs in demanding environments. With its coarse thread spacing and Class 3A thread fit, it ensures rapid installation and superior clamping force, minimizing loosening under vibration. The fully threaded design and hex drive facilitate precise torque control, making it ideal for applications where space constraints and high-strength fastening are paramount, such as in engine components, industrial fixtures, and precision equipment.
Specification Summary & Compliance
This screw adheres to ASME B18.3 and ASTM A574 specifications, ensuring dimensional accuracy and mechanical properties. It features a Class 3A thread fit for tight tolerances and coarse UNC threads for efficient assembly. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, and meets ASTM B117 standards for corrosion resistance testing, providing assurance for use in regulated industries.
