S-90044A194 5/8"-11 x 7/8" ASTM A574 Alloy Steel Socket Head Screws

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.
• Class 3A thread fit provides tighter tolerances for superior engagement and vibration resistance in demanding environments.
• Black-oxide coating on alloy steel offers enhanced corrosion resistance, extending service life in various industrial conditions.
• 5/8"-11 UNC coarse threads enable quicker installation and are less prone to cross-threading, saving time during assembly.
• 1/2" hex drive with standard socket head allows for high torque application and easy access in confined spaces.
• Full compliance with ASTM A574, RoHS 3, and REACH ensures material consistency and environmental safety for global supply chains.
• Rockwell C37 hardness balances durability and machinability, preventing premature wear while maintaining structural integrity.

Professional Applications & Engineering Value

Engineered for precision and endurance, this Black-Oxide Alloy Steel Socket Head Cap Screw addresses critical challenges in heavy machinery, automotive assemblies, and structural frameworks. The 5/8"-11 UNC coarse thread design minimizes galling and seizing during high-torque installations, while the Class 3A fit guarantees consistent clamping force in vibrating systems. Its fully threaded configuration ensures uniform load distribution, making it ideal for applications requiring adjustable fastening points. The corrosion-resistant coating and 170,000 psi tensile strength provide long-term reliability in harsh environments, reducing maintenance costs and downtime. By meeting ASTM A574 specifications, it delivers predictable performance for engineers prioritizing safety and efficiency in industrial fastening solutions.

Specification Summary & Compliance

This socket head cap screw maintains precise Class 3A thread fit per UNC standards, with a coarse thread spacing for robust engagement. Manufacturing adheres to ASTM A574 for material and dimensional consistency, ensuring repeatable quality. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious procurement and use in regulated industries.