S-93734A180 1/2"-13 x 2 1/2" Tension-Indicating Hex Head Screws

Key Features & Benefits at a Glance

• High tensile strength of 150,000 psi ensures reliable performance in heavy-duty applications, reducing the risk of fastener failure under extreme loads.
• Tension indicating feature provides a clear visual indicator at 10,500 lbs, allowing for precise torque control and preventing under or over-tightening in critical assemblies.
• Zinc yellow-chromate plated steel construction offers excellent corrosion resistance, extending service life in harsh industrial environments.
• Grade 8 strength classification and Rockwell C33 hardness deliver superior durability and wear resistance, minimizing maintenance needs and downtime.
• Partially threaded UNC coarse design enables faster installation and secure gripping in a wide range of materials, improving assembly efficiency.
• Class 2A thread fit and external hex drive ensure consistent, easy engagement with standard tools, reducing installation errors and enhancing workflow.
• REACH compliance guarantees adherence to environmental and safety regulations, supporting sustainable and responsible sourcing for industrial projects.

Professional Applications & Engineering Value

This Grade 8 hex head screw is engineered to address critical challenges in high-stress environments, such as construction, machinery, and automotive assemblies. The zinc yellow-chromate plated steel material provides robust protection against corrosion, while the tension indicating feature allows engineers to monitor preload accurately, preventing joint failure and ensuring structural integrity. With a coarse UNC thread and partial threading, it offers superior resistance to vibration and loosening, making it ideal for applications where reliability is paramount. Operating effectively in temperatures from 0° to 165° F, this screw delivers consistent performance in fluctuating conditions, reducing the need for frequent inspections and replacements in demanding industrial settings.

Specification Summary & Compliance

This fastener adheres to precise dimensional standards, including Class 2A thread fit for consistent engagement and UNC coarse thread spacing for efficient installation. It meets REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances as of the specified date. Manufactured to high-strength Grade 8 specifications, it supports rigorous industrial applications with reliable performance and safety.