S-91247A864 3/4"-10 x 8 1/2" ASME B18.2.1, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 120,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
• Zinc plating provides superior corrosion resistance, extending the service life of the screw in harsh industrial environments.
• Grade 5 steel construction with Rockwell C25 hardness offers excellent durability and resistance to wear and deformation.
• 3/4"-10 UNC coarse threading with Class 2A fit allows for quick assembly and secure fastening, minimizing installation time.
• Partially threaded design enables precise clamping force control, ideal for applications where vibration resistance is critical.
• External hex drive and hex head facilitate easy installation and removal with standard tools, improving workflow efficiency.
• Compliance with ASME B18.2.1, SAE J429, RoHS 3, and REACH ensures adherence to industry standards and environmental regulations, providing peace of mind for global sourcing.

Professional Applications & Engineering Value

This Grade 5 hex head screw is engineered to address common industrial challenges, such as structural integrity and corrosion in demanding environments. Made from high-strength steel with a zinc-plated finish, it combats rust and wear, making it suitable for heavy machinery, construction, and automotive assemblies. The 3/4"-10 UNC coarse thread and Class 2A fit provide reliable engagement in coarse-grained materials, reducing the likelihood of stripping. Its partially threaded configuration ensures optimal load distribution, preventing loosening under vibration. Ideal for applications requiring high tensile strength and durability, this screw delivers consistent performance in industrial fastening scenarios, enhancing safety and reducing maintenance costs.

Specification Summary & Compliance

This screw features precise Class 2A thread fit and adheres to UNC thread standards with a size of 3/4"-10. Manufactured in compliance with ASME B18.2.1 and SAE J429 specifications, it ensures dimensional accuracy and performance reliability. Additionally, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for global industrial use without hazardous substances.