S-91583A175 3/4"-10 x 2 3/4" ASME B18.2.6, ASTM A325, ASTM F3125 Medium-Strength Steel Heavy Hex Head Screws for Structural Applications

Key Features & Benefits at a Glance

• Exceptional tensile strength of 120,000 PSI ensures reliable performance in heavy-duty structural and construction applications, reducing the risk of fastener failure.
• Superior corrosion resistance from hot-dipped galvanized steel coating extends service life in harsh industrial environments, minimizing maintenance and replacement costs.
• High hardness rating (Rockwell C19) provides excellent wear resistance and durability under high-stress conditions, maintaining fastener integrity.
• Coarse UNC threading with Class 2A fit allows for quicker installation and better grip in various materials, enhancing assembly efficiency.
• Partially threaded design offers optimal clamping force distribution, ideal for connections requiring precise grip length control.
• Compliance with ASME B18.2.6, ASTM A325, and ASTM F3125 standards guarantees consistent quality and interoperability in professional engineering projects.
• RoHS 3 and REACH compliance ensures environmental and safety standards are met, supporting sustainable and regulated industrial operations.

Professional Applications & Engineering Value

These Grade A325 hex head screws are engineered to address critical challenges in structural bolting and heavy machinery assembly. The hot-dipped galvanized steel construction provides a robust barrier against rust and corrosion, making them suitable for outdoor and high-moisture environments like bridges, construction frames, and industrial equipment. The UNC coarse thread and partial threading design ensure secure fastening in steel-to-steel connections, reducing vibration loosening and improving load distribution. With a tensile strength of 120,000 PSI and compliance with ASME B18.2.6 standards, these screws deliver reliable performance in applications demanding high shear and tensile resistance, such as building structures and mechanical systems, while meeting rigorous industry specifications for safety and durability.

Specification Summary & Compliance

This screw features precise Class 2A thread fit with UNC coarse threading (3/4"-10 size) and dimensions including a 2 3/4" length and 1 3/8" grip length. It adheres to manufacturing standards such as ASME B18.2.6, ASTM A325, and ASTM F3125, ensuring dimensional accuracy and mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious and regulated industrial use.