M20x55 Hex Head Bolt GB/T5783 Grade 6 High Strength Carbon Steel Fastener

Product Overview

This M20x55 hex head bolt conforms to GB/T5783 standard with performance grade 6, manufactured from high-quality carbon steel for reliable fastening performance in industrial machinery, equipment assembly and structural connection applications. It features precise thread machining, consistent dimensional tolerance and excellent load-bearing capacity, suitable for both static and dynamic load working conditions.

Key Features

• Compliant with GB/T5783 national standard, M20 nominal diameter, 55mm overall length
• Grade 6 performance rating, high tensile strength and reliable load capacity
• Precision rolled threads ensure smooth engagement and anti-loosening performance
• Standard hex head design compatible with common wrench sizes for easy installation
• Carbon steel base material with durable surface treatment for corrosion resistance
• Suitable for industrial machinery, equipment maintenance and structural assembly

Specifications

Applications

This hex bolt is widely used in industrial machinery assembly, equipment maintenance and repair, structural steel connections, material handling equipment, automotive manufacturing, and general engineering fastening applications. It is an essential fastener for MRO inventory, machinery production lines and construction projects requiring reliable metric fastening solutions.

Package Contents

• 1 x M20x55 GB/T5783 Grade 6 Hex Head Bolt