S-91251A915 1"-8 x 2 3/4" 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 on alloy steel, extending service life in demanding environments.
- Precise Class 3A thread fit provides secure, vibration-resistant connections, minimizing loosening in machinery and equipment.
- High-torque capability with the 3/4" hex drive allows for easy installation and removal, even in tight spaces.
- Robust material hardness (Rockwell C37) offers excellent wear resistance, maintaining integrity under repeated use.
- Full threading along the 2 3/4" length ensures consistent grip and load distribution, ideal for various assembly needs.
- Compliance with ASTM A574 and environmental standards guarantees quality, safety, and regulatory adherence for global supply chains.
Professional Applications & Engineering Value
These socket head cap screws are engineered to address critical challenges in heavy-duty industrial settings, such as machinery assembly, automotive systems, and construction equipment. The black-oxide alloy steel construction combats corrosion and wear, while the Class 3A thread fit and coarse UNRC threads provide superior resistance to vibration and shock loads. With a high tensile strength of 170,000 psi and a 3/4" hex drive for maximum torque application, they simplify maintenance and enhance reliability in applications requiring durable, high-strength fastening solutions. This makes them ideal for reducing downtime and ensuring long-term performance in demanding environments.
Specification Summary & Compliance
This product features precise inch-based dimensions, including a 1"-8 coarse thread with Class 3A fit for tight tolerances, and is manufactured to ASTM A574 specifications. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity for industrial use.
