S-93734A370 5/8"-11 x 2 1/2" Tension-Indicating Hex Head Screws

Key Features & Benefits at a Glance

• High-strength performance with Grade 8 classification and 150,000 PSI tensile strength for reliable use in demanding industrial applications.
• Accurate tension monitoring through built-in tension indicating feature, ensuring proper clamp load up to 17,000 lbs to prevent under or over-tightening.
• Superior corrosion resistance from zinc yellow-chromate plating, extending service life in harsh environments with temperatures from 0° to 165° F.
• Easy installation and removal with external hex drive and UNC coarse threads, providing quick assembly and secure fastening in various materials.
• Consistent thread quality with Class 2A thread fit and partial threading, reducing cross-threading risks and improving joint integrity.
• Durable material construction using plated steel with Rockwell C33 hardness, offering excellent wear resistance and long-term reliability.
• Compliance with environmental standards including REACH, ensuring safe and sustainable use in global industrial supply chains.

Professional Applications & Engineering Value

This Grade 8 tension indicating hex head screw is engineered to address critical fastening challenges in heavy machinery, structural assemblies, and high-vibration environments. The zinc yellow-chromate plated steel provides robust protection against corrosion and wear, while the UNC coarse thread and partial threading design enhance grip and reduce stress concentration. The tension indicating feature allows engineers to visually verify proper installation, minimizing the risk of joint failure and maintenance downtime. Ideal for construction, automotive, and industrial equipment, this external hex drive screw ensures precise torque application and reliable performance under fluctuating temperatures from 0° to 165° F, making it a trusted choice for high-strength bolting applications.

Specification Summary & Compliance

The screw features a 5/8"-11 UNC coarse thread with Class 2A thread fit for consistent dimensional accuracy and easy assembly. It complies with REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards. Manufactured to meet Grade 8 strength requirements, it includes a tensile strength of 150,000 PSI and hardness of Rockwell C33, supporting reliable performance in industrial fastening systems.