S-90201A667 3/4"-10 x 6" Extreme-Strength Grade 9 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 180,000 PSI ensures reliable performance in the most demanding heavy-duty applications, reducing the risk of fastener failure.
• Superior corrosion resistance from zinc yellow-chromate plating extends service life in harsh industrial environments, minimizing maintenance and replacement costs.
• High hardness rating of Rockwell C38 provides excellent wear resistance and durability, maintaining thread integrity under high stress.
• Coarse UNC threading and partial threading design allow for faster installation and optimal clamping force, improving assembly efficiency.
• Precise Class 2A thread fit ensures smooth engagement and consistent performance, reducing the chance of cross-threading during installation.
• External hex drive and standard head dimensions (1 1/8" width, 9/16" height) offer compatibility with common tools, facilitating quick and secure tightening.
• Compliance with RoHS 3 and REACH regulations guarantees that the screw meets stringent environmental and safety standards for global industrial use.

Professional Applications & Engineering Value

This Grade 9 hex head screw is engineered to address critical challenges in heavy machinery, construction, and structural assemblies where high tensile strength and corrosion resistance are paramount. The steel material combined with zinc yellow-chromate plating provides a robust barrier against rust and chemical exposure, ideal for outdoor or corrosive environments. Its 3/4"-10 UNC coarse thread and partial threading enhance grip and distribute load effectively, preventing joint loosening under vibration. By utilizing a Rockwell C38 hardness and Class 2A thread fit, this screw ensures precise, reliable fastening in applications like industrial equipment, bridges, and automotive frames, reducing downtime and maintenance needs for B2B clients.

Specification Summary & Compliance

This screw adheres to inch system measurements with a length of 6" and thread size of 3/4"-10 UNC coarse. It features a Class 2A thread fit for standard tolerance, ensuring compatibility with common nuts and threaded holes. Manufactured from high-strength steel, it meets Grade 9 specifications for performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety for industrial use without hazardous substances.