S-91274A040 6-32 x 1 3/4" 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, ensuring long-term reliability in harsh industrial environments.
- Superior tensile strength of 170,000 psi provides reliable performance in high-stress applications, reducing the risk of fastener failure.
- Precise Class 3A thread fit ensures smooth assembly and secure fastening, minimizing play and vibration loosening.
- High hardness (Rockwell C37) offers excellent wear resistance and durability under repetitive loads.
- Hex socket drive design allows for easy installation and high torque application in confined spaces.
- Compliance with ASME B18.3 and ASTM A574 standards guarantees consistent quality and interchangeability.
- RoHS 3 and REACH compliance ensures environmental safety and regulatory adherence for global supply chains.
Professional Applications & Engineering Value
This 6-32 UNC Socket Head Cap Screw is engineered from zinc-flake-coated alloy steel to address critical challenges in demanding sectors like machinery assembly, automotive, and heavy equipment. Its coarse thread spacing and Class 3A fit provide rapid, secure fastening with reduced cross-threading risks, while the partially threaded rod design optimizes clamping force distribution. The combination of 170,000 psi tensile strength and corrosion-resistant coating ensures longevity in high-vibration or corrosive environments, making it ideal for applications where reliability and compliance with ASME B18.3 standards are paramount. This screw delivers consistent performance, minimizing maintenance needs and downtime in industrial settings.
Specification Summary & Compliance
This screw features a 6-32 UNC thread with Class 3A fit for precise dimensional accuracy, a minimum thread length of 3/4 inch, and a coarse thread spacing. It is manufactured in accordance with ASME B18.3 and ASTM A574 specifications, ensuring consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmentally responsible and safe usage in global markets.
