Grade 8 Hexagonal Nut 7/8" UNC 9 TPI Black Finish

Product Overview

This Grade 8 hexagonal nut features a 7/8" UNC (Unified National Coarse) thread with 9 threads per inch, finished with a durable black coating for corrosion resistance and improved wear performance. Manufactured to meet SAE J995 Grade 8 specifications, it delivers high tensile strength and reliable clamping force for heavy-duty industrial applications.

Key Features

• SAE Grade 8 construction with minimum tensile strength of 150,000 PSI for heavy load applications
• 7/8" - 9 UNC coarse thread design for fast installation and high vibration resistance
• Black oxide finish provides corrosion protection and a matte, non-reflective surface
• Standard hexagonal shape compatible with common wrench and socket sizes
• Precision rolled threads ensure smooth engagement and consistent torque performance
• Suitable for outdoor, industrial machinery and construction equipment assembly

Specifications

Applications

These grade 8 black hex nuts are widely used in heavy machinery assembly, construction equipment, automotive chassis, agricultural machinery, mining equipment, structural steel connections and other industrial scenarios requiring high strength and reliable clamping performance. They are ideal for OEM replacement and maintenance repair operations.

Package Contents

• 1 x Grade 8 7/8" - 9 UNC Black Finish Hexagonal Nut