S-90175A116 3/4"-10 x 3" ASTM A490, ASTM F3125 High-Strength Steel Heavy Hex Head Screws for Structural Applications

Key Features & Benefits at a Glance

• Exceptional tensile strength of 150,000 PSI ensures reliable performance in high-stress structural applications, reducing the risk of fastener failure.
• High Rockwell C38 hardness provides superior resistance to wear and deformation, extending service life in demanding environments.
• Class 2A thread fit with UNC coarse threading offers easy assembly and secure fastening, minimizing installation time and improving efficiency.
• Partially threaded design with 1 3/8" thread length allows for precise grip control and optimal clamping force distribution.
• External hex drive and 1 1/4" head width enable high-torque application with standard tools, ensuring tight and consistent connections.
• Compliance with ASTM A490/F3125 specifications guarantees adherence to industry standards for structural integrity and safety.
• RoHS 3 and REACH compliant ensures environmental safety and regulatory acceptance for global industrial use.

Professional Applications & Engineering Value

This high-strength steel hex head screw is engineered to address critical challenges in structural fastening, such as heavy load-bearing and vibration resistance. The ASTM A490 grade material, combined with a Rockwell C38 hardness, provides exceptional durability against shear and tensile stresses, making it ideal for construction, bridgework, and industrial machinery. The UNC coarse thread and Class 2A fit facilitate quick installation while maintaining precise alignment, reducing labor costs and enhancing project timelines. Its partially threaded configuration ensures effective grip length utilization, preventing joint loosening under dynamic conditions. Suitable for external hex drive applications, this screw delivers reliable performance in environments requiring 150,000 PSI tensile strength and compliance with stringent industry regulations.

Specification Summary & Compliance

This fastener features a 3/4"-10 UNC coarse thread with Class 2A thread fit for consistent dimensional accuracy. It meets ASTM A490 specifications (as part of ASTM F3125) for high-strength structural bolts, ensuring reliable performance under extreme loads. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) standards confirms its adherence to environmental and safety regulations, making it suitable for global industrial and construction applications.