S-91251A623 3/8"-16 x 7/8" ASTM A574 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 black-oxide finish extends service life in harsh environments, minimizing maintenance and replacement costs.
- Precision Class 3A thread fit provides secure, vibration-resistant connections, enhancing assembly integrity and safety.
- Hex socket drive design allows for high-torque installation with standard tools, improving efficiency in tight spaces.
- Fully threaded construction offers consistent gripping power along the entire length, accommodating various material thicknesses.
- Compliance with ASTM A574 guarantees material quality and manufacturing consistency, ensuring dependable performance in critical applications.
- RoHS 3 and REACH compliance meets environmental regulations, supporting sustainable and safe usage in global markets.
Professional Applications & Engineering Value
Engineered for demanding industrial settings, these black-oxide alloy steel socket head cap screws deliver robust performance where reliability is non-negotiable. The UNC coarse thread design facilitates quick assembly and disassembly, reducing labor time in maintenance-heavy operations like machinery, automotive, and construction. With a Rockwell C37 hardness and high tensile strength, they resist deformation under heavy loads, addressing common issues of loosening or shear failure. The hex drive and standard socket head profile enable precise torque application, ideal for confined spaces in equipment frames or structural components. This combination of corrosion-resistant coating and Class 3A thread fit ensures long-term durability, making them a cost-effective solution for heavy-duty fastening needs.
Specification Summary & Compliance
This product adheres to Class 3A thread fit for precise tolerance, with UNC coarse threads (3/8"-16 size) and a fully threaded rod type. It meets ASTM A574 specifications for material and manufacturing standards, ensuring consistent quality. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), confirming environmental safety and regulatory alignment for industrial use.
