S-90128A919 3/4"-10 x 3" 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, reducing the risk of fastener failure.
• Zinc-plated alloy steel construction provides superior corrosion resistance, extending service life in harsh environments.
• Class 3A thread fit with UNC coarse threading offers precise, secure engagement and easy installation, minimizing assembly time.
• Rockwell C37 hardness rating enhances durability and wear resistance, maintaining integrity under repetitive loads.
• 5/8" hex drive and standard socket head profile allow for high-torque application with common tools, improving installation efficiency.
• Compliance with ASTM A574, RoHS 3, and REACH standards guarantees quality, safety, and environmental responsibility for regulated industries.
• Partially threaded design with 2" minimum thread length provides optimal grip and clamping force in varied material thicknesses.

Professional Applications & Engineering Value

This 3/4"-10 UNC zinc-plated alloy steel socket head cap screw is engineered to address critical challenges in heavy-duty industrial settings, such as machinery assembly, automotive systems, and construction equipment. The coarse thread and Class 3A fit ensure rapid, secure fastening even in vibrating environments, reducing maintenance needs. Made from high-strength alloy steel with a zinc plating surface treatment, it combats corrosion and wear, prolonging component life in outdoor or humid conditions. Its partially threaded rod type and 170,000 PSI tensile strength provide reliable clamping for structural joints, making it ideal for applications demanding precision, durability, and compliance with ASTM A574 specifications.

Specification Summary & Compliance

This socket head cap screw features precise inch system measurements, including a thread size of 3/4"-10 UNC with Class 3A thread fit for tight tolerances. It adheres to ASTM A574 manufacturing standards, ensuring consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting safe and environmentally responsible usage in global markets.