S-92865A803 5/8"-11 x 2 1/4" ASME B18.2.1, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional Tensile Strength: With 120,000 psi tensile strength, this screw provides reliable performance in high-stress applications, reducing the risk of fastener failure.
• Superior Corrosion Resistance: Zinc plating offers excellent protection against rust and corrosion, extending the service life of your assemblies in various environments.
• High-Grade Material Hardness: Rockwell C25 hardness ensures the screw maintains its shape and thread integrity under heavy loads and repeated use.
• Optimized Thread Design: The 5/8"-11 UNC coarse thread and Class 2A fit enable quick installation and secure, vibration-resistant connections.
• Industry-Standard Compliance: Meets ASME B18.2.1 and SAE J429 specifications, ensuring consistent quality and interchangeability in professional settings.
• Full Thread Engagement: Fully threaded design maximizes grip and load distribution along the entire length, enhancing joint stability.
• Environmental and Safety Assurance: Compliant with RoHS 3 and REACH regulations, providing safe, eco-friendly fastening solutions for global supply chains.

Professional Applications & Engineering Value

This Grade 5 hex head screw is engineered to address critical challenges in industrial and construction settings, where high tensile strength and durability are paramount. The zinc plated steel construction combats corrosion in harsh environments, while the 5/8"-11 UNC coarse thread and external hex drive facilitate efficient installation with standard tools, reducing assembly time. Ideal for heavy machinery, structural frameworks, and equipment manufacturing, its fully threaded design ensures uniform stress distribution, minimizing loosening from vibrations. By adhering to ASME B18.2.1 and SAE J429 standards, it delivers consistent performance, making it a trusted choice for engineers seeking reliability in industrial fasteners.

Specification Summary & Compliance

This fastener features precise Class 2A thread fit and UNC coarse threading with a diameter of 0.625" and length of 2 1/4", manufactured to 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 material integrity for industrial use.