S-91251A845 3/4"-10 x 2 1/2" 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 under high-stress conditions, reducing the risk of fastener failure in critical applications.
- Superior corrosion resistance from the black-oxide finish on alloy steel, extending service life in demanding industrial environments.
- Precise Class 3A thread fit provides secure, vibration-resistant connections, minimizing loosening in machinery and equipment.
- High hardness rating (Rockwell C37) offers excellent wear resistance, maintaining thread integrity through repeated use and assembly.
- Fully threaded design allows for maximum adjustability and uniform clamping force along the entire length.
- Coarse UNRC threads enable quick installation and are less prone to clogging in dirty or debris-filled settings.
- 5/8" hex drive socket head facilitates easy installation with standard tools, even in confined spaces.
Professional Applications & Engineering Value
This black-oxide alloy steel socket head cap screw is engineered to address common industrial challenges such as vibration-induced loosening and environmental corrosion. The coarse UNRC thread design ensures rapid assembly in heavy machinery, construction equipment, and automotive systems, where time efficiency is critical. Its high tensile strength and Rockwell C37 hardness provide dependable performance in high-load applications, preventing stripping and deformation. The fully threaded configuration offers uniform stress distribution, reducing the risk of joint failure. Ideal for use in manufacturing, metalworking, and assembly lines, this fastener delivers consistent reliability under dynamic loads and harsh conditions, ensuring long-term operational stability.
Specification Summary & Compliance
This socket head cap screw features a 3/4"-10 coarse UNRC thread with Class 3A fit, ensuring precise dimensional accuracy and interchangeability. Manufactured in compliance with ASTM A574 specifications, it guarantees consistent quality and performance. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety standards for industrial use worldwide.
