Overview
This fine-thread hex nut is engineered for the most demanding structural and industrial fastening applications where superior strength and vibration resistance are non-negotiable. Manufactured from high-grade alloy steel and heat-treated to achieve a Grade 12 classification, it provides exceptional clamp load and durability. The M56-4 fine thread profile offers increased thread engagement and a tighter pitch, significantly enhancing resistance to loosening under dynamic loads and vibration compared to coarse-thread alternatives. A protective black oxide finish is applied to inhibit corrosion in typical service environments. This product is supplied in a convenient package quantity of two.
Key Features
Manufactured from high-strength alloy steel, heat-treated to Grade 12 Fine-thread (M56-4) design for maximum vibration resistance and thread engagement Black oxide finish provides a durable layer of corrosion protection Precision-machined for consistent thread fit and reliable performance Designed for use with high-strength bolts in critical tension joints
Specifications
System of Measurement: Metric Material Grade/Class: Grade 12
Material
Alloy Steel Thread Size: M56-4 Finish: Black Oxide Width Across Flats: 2.2 in Package Quantity: 2
Applications
Heavy structural steel construction and framing High-stress machinery and equipment assembly Infrastructure projects including bridges and power generation Manufacturing of industrial presses, conveyors, and large-scale fabrications Any application requiring a high-strength, vibration-resistant fastener in a metric thread format
