Overview
This Grade 12 alloy steel hex nut is engineered for high-strength, heavy-duty industrial fastening applications. Designed to meet rigorous performance standards, it provides a reliable and robust clamping solution for critical assemblies subjected to extreme mechanical stress, vibration, and high tensile loads. The metric M42 coarse thread ensures compatibility with corresponding bolts and studs in demanding environments.
Key Features
Manufactured from high-grade alloy steel for superior tensile strength and durability Grade 12 classification indicates a high-performance fastener for critical structural applications Black oxide finish provides a layer of corrosion resistance and a clean, professional appearance Coarse thread design (M42) facilitates faster assembly and improved resistance to seizing in high-vibration settings 1.65-inch width across flats ensures secure, standard tool engagement with common wrenches Consistent dimensional accuracy guarantees reliable performance and interchangeability
Specifications
System of Measurement: Metric Material Grade/Class: Grade 12
Material
Alloy Steel Thread Size: M42 Thread Type: Coarse Finish: Black Oxide Width Across Flats: 1.65 inches Package Quantity: 20 units
Applications
Heavy machinery and equipment assembly Structural steel fabrication and construction Industrial manufacturing and processing line maintenance High-stress bolting in energy, mining, and transportation sectors Infrastructure projects requiring high-strength metric fasteners Repair and overhaul of large-scale mechanical systems








