S-92865A845 3/4"-10 x 2 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 under high-stress conditions, reducing the risk of fastener failure in demanding applications.
• Superior corrosion resistance from zinc plating extends service life and maintains integrity in harsh or outdoor environments.
• High hardness rating (Rockwell C25) provides excellent wear resistance and durability, minimizing deformation during installation and use.
• Coarse UNC threads with Class 2A fit enable faster assembly and better performance in materials prone to stripping or vibration.
• Full threading along the 2 1/2" length offers maximum grip and adjustability, ideal for thick materials and structural connections.
• External hex drive design allows for high torque application with standard tools, ensuring secure fastening and easy maintenance.
• Compliance with industry standards including ASME B18.2.1, RoHS 3, and REACH ensures safety, reliability, and environmental responsibility.

Professional Applications & Engineering Value

This Grade 5 hex head screw is engineered to address critical challenges in heavy-duty industrial and construction settings. The zinc plated steel construction provides a protective barrier against rust and corrosion, making it suitable for outdoor machinery, structural steel frameworks, and equipment exposed to moisture. The coarse UNC thread and Class 2A thread fit enhance installation speed and vibration resistance, reducing loosening in dynamic applications like automotive assemblies, conveyor systems, and heavy machinery. With a tensile strength of 120,000 psi and full threading, it ensures uniform load distribution and reliable clamping force in thick materials, preventing joint failure and minimizing maintenance downtime. Ideal for industrial fastening where strength, durability, and regulatory compliance are paramount.

Specification Summary & Compliance

This screw adheres to precise dimensional standards with a Class 2A thread fit for consistent engagement and assembly ease. It conforms to ASME B18.2.1 and SAE J429 Grade 5 specifications, ensuring mechanical properties and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing it is free from hazardous substances and safe for industrial use.