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plated galvanized long hex bolt lengthen hexagon bolt for construction project

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  • plated galvanized long hex bolt lengthen hexagon bolt for construction project
  • plated galvanized long hex bolt lengthen hexagon bolt for construction project
  • plated galvanized long hex bolt lengthen hexagon bolt for construction project
  • plated galvanized long hex bolt lengthen hexagon bolt for construction project
  • plated galvanized long hex bolt lengthen hexagon bolt for construction project

Short Description:

Hex bolt: A type of fastener consisting of a head and a screw (a cylinder with external threads), used in conjunction with a nut for fastening two parts with through-holes. This type of connection is called bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection is a detachable connection.


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    According to the force mode of connection, there are ordinary and reaming holes. Bolts for reaming holes should fit the size of the holes and be used when subjected to transverse forces.

    Hexagonal heads, round heads, square heads, countersunk heads, etc. Generally countersunk heads are used where the surface is required to be smooth after joining, because countersunk heads can be screwed into parts. Round heads can also be screwed into parts. The tightening force of square head can be larger, but the size is large. The hexagonal head is the most commonly used.

    Company introduction

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    Handan Chang Lan Fastener Manufacturing Co., Ltd. formerly Yongnian Tiexi Changhe fastener factory was large-scale standard fastener manufacturer in Yongnian District. The company is located in standard fastener distribution center of Hebei Yongnian, covering an area of 3,050 square meters, was close to Tianjin Port and Qingdao ports, export is very convinedtly. The company has multi position cold heading machine, model 12b, 14b, 16b, 24b, 30b, 33b; has hot forging machine, model has 200 tons, 280 tons, 500 tons, 800 tons;

    Has a variety of supporting equipment, including rolling machine, rolling machine, oil press, etc. for bolts, nuts, double stud bolts , foundation bolts and complete product testing equipment. With an experienced technical research and development team, high-quality management personnel and spacious production environment.

    Grade 8.8 and above bolts are made of low carbon alloy steel or medium carbon steel and heat treated (quenching, tempering). They are called high strength bolts and the rest are called ordinary bolts

    There are many names for bolts, and they may vary from person to person. Some are called bolts, some are called studs, and some are called fasteners. There are so many names, but they all mean the same thing. They're bolts. Bolt is a general term for fastener. Bolt is a tool to tighten the machine parts step by step by using the circular rotation of the inclined plane and the physics and mathematics principle of friction. 

    Bolts are indispensable in daily life and industrial production and manufacturing. Bolts are also known as industrial meters. It can be seen that bolts are widely used. The application scope of bolt is: electronic products, mechanical products, digital products, electrical equipment, mechanical and electrical products.

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