S-90044A177 5/8"-11 x 5" 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.
• Superior corrosion resistance from the Black-Oxide finish prolongs service life in harsh industrial environments, minimizing maintenance needs.
• Precise Class 3A thread fit guarantees tight, secure connections with minimal play, enhancing assembly integrity and vibration resistance.
• Fully threaded design provides consistent clamping force along the entire 5" length, offering versatile fastening solutions.
• High hardness (Rockwell C37) improves wear resistance and durability, ensuring long-term reliability under repetitive loads.
• Coarse UNRC threads enable quicker installation and better performance in materials prone to stripping or corrosion buildup.
• 1/2" hex drive compatibility allows for easy installation with standard tools, reducing assembly time and labor costs.

Professional Applications & Engineering Value

Engineered for demanding industrial settings, this Black-Oxide Alloy Steel Socket Head Cap Screw addresses critical challenges in heavy machinery, automotive, and construction applications. The ASTM A574 compliant material, combined with a Class 3A thread fit and coarse UNRC threads, ensures exceptional clamp load retention and resistance to loosening under vibration. The fully threaded design distributes stress evenly, preventing localized failure points, while the corrosion-resistant Black-Oxide surface treatment withstands exposure to moisture and chemicals. Ideal for high-torque assemblies requiring 170,000 psi tensile strength, it provides a reliable fastening solution that minimizes downtime and enhances operational safety in rigorous environments.

Specification Summary & Compliance

This socket head cap screw features a 5/8"-11 thread size with Class 3A thread fit and UNRC coarse threads for precise engagement. Manufactured to ASTM A574 specifications, it ensures consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmentally responsible sourcing and usage in global markets.