S-91247A785 9/16"-12 x 7" ASME B18.2.1, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws

Key Features & Benefits at a Glance

• High tensile strength of 120,000 psi ensures reliable performance in demanding industrial applications, reducing the risk of fastener failure under heavy loads.
• Zinc plating provides excellent corrosion resistance, extending the service life of the screw in harsh environments and minimizing maintenance needs.
• Grade 5 steel construction with Rockwell C25 hardness offers superior durability and wear resistance, ideal for repetitive assembly and disassembly.
• Coarse UNC thread design with Class 2A fit allows for quick and easy installation, reducing assembly time and labor costs in production settings.
• Partially threaded shank and external hex drive enable precise torque application and secure fastening in structural and machinery applications.
• Compliance with ASME B18.2.1 and SAE J429 standards guarantees consistent quality and interchangeability, ensuring compatibility with existing industrial systems.
• RoHS 3 and REACH environmental compliance supports sustainable manufacturing practices and meets global regulatory requirements for safe use.

Professional Applications & Engineering Value

This 9/16"-12 UNC Grade 5 zinc plated steel hex head screw is engineered to address common challenges in heavy-duty industrial settings, such as vibration resistance and long-term reliability. The coarse thread and partially threaded design provide enhanced grip and reduced loosening in dynamic applications like machinery assembly, construction frameworks, and automotive components. Made from high-strength steel with a zinc-plated finish, it effectively combats corrosion, extending service life in exposed or humid environments. By meeting ASME B18.2.1 and SAE J429 standards, this fastener ensures precise fit and performance, minimizing downtime and improving overall assembly efficiency for engineers and procurement specialists.

Specification Summary & Compliance

This screw features a 9/16"-12 UNC coarse thread with Class 2A thread fit for consistent dimensional accuracy, and it is manufactured in accordance with ASME B18.2.1 and SAE J429 specifications. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and adherence to international standards for industrial fasteners.