Four parts of a bolt and the different tools used in industrial bolting

 What are the four parts of a bolt and the different tools used for industrial bolting

Bolts are one of the necessary fasteners used in industries for their workpieces and components. The primary role of this threaded fastener is to keep two or more hardware parts together in a particular position. The build of a bolt is straightforward, but it has several components that must be understood clearly and there are different types of bolting tools used to maintain the integrity amongst these fasteners.

First let us understand the four components of a bolt are:


  1. Head

The topmost of the bolt is the head, which resembles and provides a surface area for torque tools or hydraulic bolt tensioner that you can get a grip on. The head is one of the essential parts to loosen or tighten a bolt. A specific tool must grip the head before you can use the bolt. Commonly, wrenches and screws are used to tighten and loosen the bolt because when it is placed around the head, it provides grip. Regarding different styles, naturally, hex, slotted hex, and socket cap kinds of head styles are available for bolts. These styles offer the best surface area where another tool can get the best grip.


  1. Shank

Shank refers to the non-threaded part of the bolt just below the head, which looks smooth. The whole point of this smooth surface is to prevent any unnecessary movement of the workpieces and components that are joined together. Shank helps the bolt to maintain stability when there is a lot of vibration and direction of the joint parts. It keeps the components intact, and no pulse can push the bolt back out of the equipment or workpiece.


  1. Grip length 

The grip length specifies the thickness of the joining parts to be combined using the bolt. This part of the bolt helps assemble components of different sizes and thicknesses. The grip length should always be equal to the thickness of any of the components attached with the bolt's help.


  1. Threading

A bolt can never sustain without threading. Threading is the crucial feature of a bolt that allows it to be put into or moved out of work components. There are different types of bolts and everyone has its own type of threading. Many might have a small threaded area, and others might have a large one. Threading is found on the bottom-most part of a bolt. This connects with the internal threading of a work component to move in and out of that particular component.


Tools used for industrial bolting


Industrial bolting tools like torque wrench or bolt tensioners are an apt choice that greatly helps the maintenance of facilities like power plants and other facilities in many major industries. From hosting and liners to bolting on compressors, there is a lot of use for industrial bolting. Even many nuclear plants use bolting on cascade covers and many pieces of equipment. Some of the essential tools used for industrial bolting are: 

  • Hydraulic Torque Wrench- A hydraulic torque wrench is designed to put torque on the bolt with such precision that it what’s perfectly. The ratio between the power and accuracy is made perfect using hydraulic torque ranges.


  • Hydraulic bolt tensioners – these are primarily used in wind turbines and subsea tensioners where you have to stretch the bolt so that a certain amount of load can be put to it.


  • Smart dc tools- these assembly tools are industrial 4.0 compatible and are widely used for manufacturing or assembly lines.. It has a powerful motor and a trigger that you can use to tighten and loosen the bolts as per your requirements along with data traceability. This has been used in most factories because it offers error proof tightening..


  • Battery torque wrench are mainly used in tightening and loosening the bolts during maintenance. It provides precision and working comfort as it has no vibration and shocks data common during bolt tightening. It is unmatchable, versatile, and reliable.


  • Electric torque wrench- these are standard and wired versions of the torque ranges used to tighten and loosen the bolts during operation. The best thing about this tool is that it has an LED screen that is integrated into it to provide you with more flexibility and productivity.


  • Induction bolt heating equipment- this machine is easy to operate and has automatic and manual power regulations. You can control the heating time with a timer that has been integrated into the device. It is used to heat the center of the bolt and minimizes heat for this person.


  • Hydraulic cylinders- this consists of a cylindrical tube that is mainly used to create a mechanical movement. The Piston helps isolate the two chambers from each other that are connected by a bolt.

Industrial processes are becoming increasingly complex. Manufacturers need to incorporate new high-tech materials and features into products that are lighter, healthier, cheaper and more reliable. But one element remains constant i.e., the role of bolted joints to firmly connect components.





Content Sources :- ABSGroup

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