S-90044A286 1-64 x 3/4" ASTM A574 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 170,000 psi ensures reliable performance under high-stress conditions, reducing the risk of fastener failure in demanding applications.
• Precision Class 3A thread fit provides superior engagement and vibration resistance, minimizing loosening in machinery and equipment.
• Black-oxide coating on alloy steel offers enhanced corrosion resistance and a durable finish, extending service life in harsh industrial environments.
• Hex socket drive design allows for high torque application and easy installation in confined spaces, improving assembly efficiency.
• Fully threaded body ensures consistent clamping force along the entire length, ideal for applications requiring uniform load distribution.
• Rockwell C37 hardness provides excellent wear resistance, maintaining thread integrity through repeated use and disassembly.
• Compliance with ASTM A574, RoHS 3, and REACH guarantees material quality and environmental safety, meeting stringent industry standards.

Professional Applications & Engineering Value

This Black-Oxide Alloy Steel Socket Head Cap Screw is engineered to address critical fastening challenges in industrial settings. The 1-64 UNC coarse thread and Class 3A fit deliver precise alignment and high resistance to vibrational loosening, making it ideal for machinery, automotive assemblies, and precision equipment. The alloy steel construction combined with a black-oxide surface treatment provides superior durability against corrosion and wear, ensuring long-term reliability in harsh conditions. With a hex drive for easy installation in tight spaces, these screws offer efficient maintenance and reduced downtime, supporting robust industrial fastening solutions that meet rigorous performance demands.

Specification Summary & Compliance

This screw features a 1-64 UNC coarse thread with Class 3A precision fit for accurate thread engagement, and is fully threaded for consistent performance. It adheres to ASTM A574 specifications for high-strength socket head cap screws, ensuring material and manufacturing quality. The product is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental standards for industrial use.