S-91251A714 1/2"-13 x 1 1/4" ASTM A574 Alloy Steel Socket Head Screws
Alloy Steel Socket Head Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Exceptional tensile strength of 170,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
- Superior corrosion resistance from the black-oxide coating extends service life in harsh industrial environments, minimizing maintenance needs.
- Precise Class 3A thread fit provides secure, vibration-resistant connections, enhancing assembly integrity and safety.
- High hardness (Rockwell C37) offers excellent wear resistance, maintaining thread integrity through repeated use.
- Fully threaded design allows for uniform clamping force along the entire length, ideal for adjustable or deep-set applications.
- Coarse UNC threads enable quick installation and reduced cross-threading risk, saving time in production lines.
- Compliance with ASTM A574, RoHS 3, and REACH ensures material quality and environmental safety, meeting global industrial standards.
Professional Applications & Engineering Value
Engineered for demanding environments, these black-oxide alloy steel socket head cap screws address common industrial challenges such as vibration loosening and corrosion. The hex socket drive and coarse UNC threads facilitate easy installation in tight spaces, while the Class 3A thread fit ensures minimal backlash in precision machinery. Ideal for heavy-duty equipment, automotive assemblies, and construction frameworks, the fully threaded design distributes load evenly, preventing stress concentration. With high tensile strength and corrosion-resistant coating, these fasteners reduce downtime and replacement costs in applications exposed to moisture, chemicals, or dynamic loads.
Specification Summary & Compliance
This socket head cap screw adheres to ASTM A574 specifications, with a 1/2"-13 UNC thread size and Class 3A fit for precise dimensional accuracy. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and material integrity in industrial use.
