Overview
This Grade 8 carbon steel hex nut is engineered for high-strength, heavy-duty fastening in critical industrial and construction assemblies. The black oxide finish provides a durable, mildly corrosion-resistant surface while maintaining precise dimensional tolerances. Manufactured to stringent Grade 8 specifications, this nut is designed to withstand high clamp loads, severe vibration, and demanding mechanical stress, ensuring long-term joint integrity and reliability.
Key Features
Manufactured from high-strength Grade 8 carbon steel for superior load-bearing capacity Black oxide finish offers a protective layer against corrosion and reduces galling Precision-machined threads on an M18 metric profile ensure consistent engagement and reliable torque performance Standard hex design with a width across flats of 1.417 inches for compatibility with common wrenches and sockets Ideal for use with matching high-strength bolts in structural and high-stress applications
Specifications
System of Measurement: Metric Material Grade/Class: Grade 8
Material
Carbon Steel Thread Size: M18 Finish: Black Oxide Width Across Flats: 1.417 inches Package Quantity: 500 units
Applications
Heavy machinery and equipment assembly Structural steel framing and construction Industrial conveyor systems and material handling equipment Automotive and transportation manufacturing Infrastructure projects requiring high-strength bolted connections








