ThePipingMart Blog Fasteners 6 Types of Hex Nuts and Their Uses

6 Types of Hex Nuts and Their Uses

Hex Nuts

When it comes to bolts and screws, you’re probably familiar with the hex nut. This six-sided hexagon nut goes hand in hand with bolts for fastening two objects together. This nut works by applying pressure to the bolt and securing it in place, so it can’t unscrew independently. However, different types of hex nuts can be used for other applications. This blog discusses the different types of hex nuts available and what you need to know about them.

Types of Hex Nuts

Standard Hex Nut

Standard hex nuts are your typical six-sided nuts that come in different sizes to fit other bolts. They are the most widely used type of nut and are usually made of steel or stainless steel. They are the best choice for general-purpose fastening applications and are easily found at hardware stores.

Nyloc Nut

Nyloc nuts are also known as nylon-insert lock nuts. These hex nuts feature a nylon ring inside the nut, creating a tighter fit when the nut is tightened onto the bolt. This added friction prevents the nut from working itself loose over time, making them an ideal choice for high-vibration applications.

Wing Nut

Wing nuts are hex nuts with “wings” on the side, allowing for easy hand tightening. They are often used in applications where frequent adjustments or removals are necessary. These nuts are commonly used in woodworking, lighting fixtures, and other household applications.

Flange Nut

Flange nuts are hex nuts with a broad, circular base that extends outward from the nut’s six sides. This design allows for better pressure distribution and helps prevent the nut from sinking into soft materials. This type of hex nut is often used with large-diameter bolts and in applications where vibration and corrosion are a concern.

Square Nut

The square nut may seem simple, but its unique shape holds many advantages over its more common hexagonal counterpart. The square profile provides a more excellent bearing surface, increasing grip strength and less risk of slipping. The square nut can also be tightened with a spanner at any angle, making it a versatile choice for use in applications with limited access. As an expert in the field, consider the benefits of a square nut for your next project.

Acorn Nut

Acorn nuts are hex nuts with a rounded, domed end that resembles an acorn. This nut is often used for decoration or to protect the exposed end of a bolt. They can also cover sharp edges created by exposed bolts to prevent injury.


In conclusion, various hex nuts are available to suit different applications. You’ll want to consider the application, fastened material, bolt type, and other factors when selecting the correct kind of hex nut for your job. Whether you need standard hex nuts for general-purpose fastening or speciality nuts for high-vibration or corrosion-prone applications, there’s a hex nut out there that will fit your needs. Choose your hex nuts wisely, and you’ll ensure your project will remain solid and secure.

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