S-92865A798 5/8"-11 x 1 1/2" 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 finish provides excellent corrosion resistance, extending the service life of the screw in various environmental conditions.
• Grade 5 steel construction with Rockwell C25 hardness offers superior durability and wear resistance, ideal for repetitive assembly and disassembly.
• UNC coarse thread spacing with Class 2A fit allows for quick and easy installation, minimizing assembly time and labor costs.
• External hex drive and hex head design enables secure tightening with standard tools, enhancing grip and reducing slippage during installation.
• Full threading along the 1 1/2" length ensures consistent engagement and clamping force across the entire fastener, improving joint stability.
• Compliance with ASME B18.2.1 and SAE J429 standards guarantees precise dimensions and reliable performance, meeting industry requirements for quality and safety.

Professional Applications & Engineering Value

This Grade 5 hex head screw is engineered to address common industrial challenges, such as vibration loosening and corrosion-induced degradation. Made from high-strength steel and featuring a zinc-plated finish, it resists rust and wear in harsh environments, from machinery assembly to structural frameworks. The UNC coarse thread with Class 2A fit ensures rapid installation and secure fastening, reducing downtime in production lines. Its external hex drive allows for easy torque application, making it ideal for applications requiring high clamping force, such as in construction, automotive, and heavy equipment. By combining 120,000 psi tensile strength and full threading, this screw provides uniform stress distribution, preventing joint failure and enhancing long-term reliability in industrial fastening scenarios.

Specification Summary & Compliance

This fastener adheres to Class 2A thread fit tolerances for precise engagement and is manufactured in accordance with ASME B18.2.1 and SAE J429 Grade 5 specifications. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are met for global industrial use.