Overview
This high-strength hex nut is engineered for critical structural connections in heavy machinery, construction, and industrial assembly. Manufactured from carbon steel and heat-treated to Grade 8 specifications, it delivers exceptional clamping force and reliability under extreme loads. The black oxide finish provides a durable layer of protection against corrosion in demanding environments. Supplied in a convenient 36-piece package, this nut streamlines inventory management and ensures a ready supply for high-volume projects.
Key Features
Grade 8 classification for superior tensile strength and reliability Black oxide finish for enhanced corrosion resistance and a professional appearance Precision-machined threads for consistent, secure mating with Grade 8 or higher fasteners Wide 1.61-inch across-flats design for secure wrench engagement and high-torque installation Bulk packaging optimized for efficient job site distribution and storage
Specifications
Material: Carbon Steel Material Grade/Class: Grade 8 Thread Size: M27 Width Across Flats: 1.61 inches Nominal Height: 1.06 inches Finish: Black Oxide System of Measurement: Metric (M-Series Thread) Package Quantity: 36 pieces Minimum Tensile Strength: 150,000 PSI
Applications
Heavy-duty structural steel framing and construction Assembly of mining, agricultural, and material handling equipment High-stress connections in infrastructure and transportation projects General manufacturing and maintenance requiring certified high-strength fasteners Repair and fabrication in industrial and OEM settings








