S-92620A202 10-24 x 1 1/4" ASME B18.6.3, SAE J429 High-Strength Grade 8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 150,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
• Superior corrosion resistance from zinc yellow-chromate plating extends service life in harsh industrial environments.
• High hardness rating (Rockwell C33) provides excellent wear resistance and maintains thread integrity under repeated use.
• Full threading design allows for maximum grip length and uniform stress distribution across the entire fastener.
• Coarse UNC threads with Class 2A fit enable quick installation and superior vibration resistance in various materials.
• External hex drive configuration offers secure tool engagement and high torque capability for efficient assembly.
• Comprehensive compliance with ASME, SAE, RoHS 3 and REACH standards ensures material safety and interoperability.

Professional Applications & Engineering Value

These Grade 8 hex head screws deliver critical performance advantages in demanding industrial settings where fastener reliability directly impacts operational safety and equipment longevity. The combination of high-strength steel construction and zinc yellow-chromate plating addresses common failure points in heavy machinery, structural assemblies, and automotive applications by providing exceptional resistance to both mechanical stress and environmental corrosion. The fully threaded UNC coarse thread design ensures maximum holding power in various substrate materials while the external hex drive facilitates efficient installation even in confined spaces. Engineered to maintain clamping force under extreme vibration and load conditions, these screws provide lasting solutions for critical connections in manufacturing equipment, construction frameworks, and transportation systems.

Specification Summary & Compliance

This 10-24 x 1-1/4" hex head screw features Class 2A thread fit tolerances per UNC standards, ensuring consistent threading compatibility. Manufacturing complies with ASME B18.6.3 dimensional specifications and SAE J429 Grade 8 mechanical requirements. The product meets RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) compliance for chemical safety, making it suitable for global industrial applications with strict regulatory requirements.