S-90044A199 3/4"-16 x 10" 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 industrial applications, minimizing the risk of fastener failure.
• Superior corrosion resistance from the black-oxide finish extends service life in harsh environments, reducing maintenance and replacement costs.
• Precise Class 3A thread fit provides tighter tolerances for secure, vibration-resistant connections in critical assemblies.
• High hardness rating (Rockwell C37) enhances wear resistance and durability under repetitive loading conditions.
• Fine UNF thread spacing offers improved clamping force distribution and better resistance to loosening compared to coarse threads.
• Partially threaded design allows for focused grip on specific sections, ideal for applications requiring precise positioning and shear strength.
• Compliance with ASTM A574, RoHS 3, and REACH ensures material consistency, environmental safety, and global regulatory acceptance.

Professional Applications & Engineering Value

This black-oxide alloy steel socket head cap screw is engineered to address common industrial challenges such as joint failure under extreme loads and corrosion in demanding environments. The 3/4"-16 UNF fine threads with Class 3A fit deliver superior clamping force and vibration resistance, making it ideal for heavy machinery, automotive assemblies, and structural frameworks. The high tensile strength (170,000 psi) and Rockwell C37 hardness ensure long-term reliability in applications like press fittings, mold bases, and equipment requiring repeated disassembly. Combined with the hex drive (5/8") for easy installation, this screw provides a robust fastening solution that minimizes downtime and enhances operational safety in industrial settings.

Specification Summary & Compliance

This socket head cap screw features a 3/4"-16 UNF thread with Class 3A precision for tight tolerance fit, and a partially threaded rod design with a minimum thread length of 2 inches. 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 safe and globally accepted industrial use.