Overview
This Grade 8 carbon steel hex nut is engineered for the most demanding high-strength structural and machinery applications. It is manufactured to rigorous Grade 8 standards, ensuring exceptional load-bearing capability and reliability in critical assemblies. The metric M68 coarse thread provides robust engagement with compatible bolts, while the black oxide finish offers a durable layer of protection against corrosion. Sold in a convenient package quantity of 12, this nut is a fundamental component for heavy-duty construction, industrial equipment, and infrastructure projects.
Key Features
Manufactured from high-grade carbon steel for superior strength Grade 8 classification indicating a minimum tensile strength of 150,000 PSI Black oxide finish provides corrosion resistance and a clean, professional appearance Metric M68 coarse thread for secure fastening in heavy-section materials Large 2.68-inch width across flats allows for high torque application with standard wrenches Designed for use with corresponding high-strength bolts in critical connections
Specifications
System of Measurement: Metric Material Grade/Class: Grade 8
Material
Carbon Steel Thread Size: M68 Thread Type: Coarse Finish: Black Oxide Width Across Flats: 2.68 inches Minimum Tensile Strength: 150,000 PSI Package Quantity: 12
Applications
Heavy structural steel construction and framing Assembly of large industrial machinery and presses Infrastructure projects including bridges and heavy civil engineering Mining, forestry, and agricultural equipment manufacturing Repair and maintenance of high-stress mechanical systems
