S-90044A174 5/8"-11 x 3" ASTM A574 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 170,000 psi provides reliable performance in high-stress applications, reducing the risk of fastener failure.
• Black-oxide coating on alloy steel offers enhanced corrosion resistance and a durable, wear-resistant surface for extended service life.
• Class 3A thread fit with UNRC coarse threads ensures precise, secure engagement and faster assembly in demanding industrial environments.
• Rockwell C37 hardness delivers superior resistance to wear and deformation, maintaining fastener integrity under heavy loads.
• Fully threaded design allows for consistent clamping force along the entire length, ideal for applications requiring uniform pressure distribution.
• 1/2" hex drive and standard socket head facilitate easy installation with common tools, minimizing assembly time and effort.
• Compliance with ASTM A574, RoHS 3, and REACH guarantees adherence to rigorous quality and environmental standards for safe, reliable use.

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, these black-oxide alloy steel socket head cap screws address critical challenges in machinery, automotive, and construction sectors. The Class 3A UNRC coarse threads provide excellent vibration resistance and quick installation, reducing downtime in assembly lines. With a high tensile strength of 170,000 psi and Rockwell C37 hardness, they withstand extreme mechanical stresses and repetitive loads, preventing stripping or shearing. The fully threaded rod type ensures uniform load distribution, making them ideal for securing components in equipment where precision and durability are paramount. Their black-oxide surface treatment adds a layer of protection against rust and abrasion, extending service life in harsh environments while meeting ASTM A574 specifications for consistent performance.

Specification Summary & Compliance

This socket head cap screw features precise inch system measurements, including a 5/8"-11 UNRC coarse thread with Class 3A fit for tight tolerances and reliable fastening. It complies with ASTM A574 manufacturing standards, ensuring high-quality alloy steel construction. Additionally, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental safety and regulatory adherence for industrial use.