S-92620A668 7/16"-14 x 7/8" ASME B18.2.1, SAE J429 High-Strength Grade 8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Maximum load-bearing capacity with 150,000 psi tensile strength, ideal for high-stress industrial assemblies
• Superior corrosion resistance from zinc yellow-chromate plating, extending service life in harsh environments
• High hardness rating of Rockwell C33 ensures minimal wear and deformation under repeated use
• Easy installation and removal with external hex drive and coarse UNC threading for quick fastening
• Full threading along the 7/8" length provides consistent grip and uniform stress distribution
• Precise thread fit (Class 2A) guarantees reliable engagement and vibration resistance
• Compliance with ASME B18.2.1 and SAE J429 ensures interchangeability and quality assurance

Professional Applications & Engineering Value

Engineered for demanding industrial applications, this Grade 8 hex head screw delivers exceptional reliability where failure is not an option. The steel material combined with zinc yellow-chromate plating offers robust protection against rust and chemical exposure, making it suitable for outdoor machinery, construction equipment, and automotive assemblies. Its coarse UNC thread and fully threaded design enable rapid installation in thick materials, reducing assembly time while maintaining high strength under dynamic loads. By meeting rigorous standards, it addresses common issues like loosening under vibration and ensures long-term structural integrity.

Specification Summary & Compliance

This fastener adheres to Class 2A thread fit for precise tolerance, with UNC coarse threading (7/16"-14) and external hex drive for compatibility with standard tools. Manufactured in accordance with ASME B18.2.1 and SAE J429 specifications, it guarantees dimensional accuracy and performance consistency. The zinc yellow-chromate finish provides RoHS and REACH compliant corrosion protection, supporting use in regulated industries.