what is fastening


What is Fastening?

Fastening is a process of joining two or more objects, structures or materials together to create a strong and stable connection. This process is essential in many industries, such as construction, automotive, aerospace, and manufacturing. Various methods for fastening exist, including welding, brazing, adhesive bonding, sewing, and most commonly, mechanical fastening.

Mechanical fastening is the use of mechanical devices or techniques to join two or more objects together. It is the most convenient and cost-effective way of fastening, and it is widely used in industrial and domestic applications. This article will cover some of the most common types of mechanical fasteners.

1. Screws and Bolts

Screws and bolts are perhaps the most commonly used fasteners in the world. They come in different shapes, sizes, and materials to suit various applications. They are used to join two or more objects together by threading into a hole, tunnel or prethreaded assembly.

Screws are smaller than bolts and have a spiral-shaped ridge that wraps around the stem. They are designed to hold objects together by applying pressure over specific surfaces. Bolts, on the other hand, are typically larger than screws and are inserted into a hole with a nut tightened on the other end to secure the connection.

2. Nuts

Nuts are essential components for bolts and screws. They are used to hold the screw or bolt tight in position, preventing it from loosening or coming off. Nuts come in different shapes, sizes, and thread patterns used to match the thread of a bolt or screw.

Some nuts come with locking features that prevent them from coming loose over time. Locknuts have a plastic or nylon insert that keeps the nut locked in position, while jam nuts are used to lock a particular position and prevent the bolt or screw from rotating.

3. Rivets

Rivets are fasteners that are widely used in the aerospace and automotive industries. They are used to join two or more sheets of metal together by forming a low profile bulge on the opposite end. Rivets are inserted into a pre-drilled hole and then deformed to secure the joint.

There are different types of rivets available, including solid, blind, and tubular. Solid rivets are the most common type and are used when the joint must bear a heavy load. Blind rivets are ideal for applications where you only have access to one side of the joint, while tubular rivets are used to join several layers of metal together.

4. Clips

Clips are a type of fastener that is used to hold objects together without the need for screws or bolts. They are designed to fit into a specific groove or slot and hold the object firmly in place. Clips are commonly used in automotive and electronic industries.

Some of the most commonly used clips include snap-fit clips, which snap together to join two objects, and retaining clips, which are used to secure an object in place. There are also panel clips, which hold automotive interior panels in place, and E-clips, which are used in electronic devices.

5. Washers

Washers are fasteners that are used to provide extra support when tightening nuts or bolts. They are placed between the nut or bolt and the surface to distribute the pressure and prevent damage to the surface. Washers are used in many different applications, from household fixtures to heavy machinery.

There are different types of washers available, including flat, spring, and lock washers. Flat washers are the most common type and are used to distribute load evenly across the joint. Spring washers are used to provide resistance and prevent nuts and bolts from coming loose, while lock washers are used to prevent bolts and nuts from backing off.


Fastening is an essential part of many industries and applications. It is essential to understand the different types of fasteners available, their properties, and their application to select the most effective solution for the job. Whether you are working on a DIY project or building a complex structure, having knowledge of different fastening techniques and materials can make a significant difference in the outcome.


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