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What Are Shoulder Bolts Used For?

Shoulder bolts are popular machine screws with an unthreaded shoulder under the head, more prominent in diameter than the threads. They are popularly known for their use to secure components together. As design engineers, purchasing managers, quality assurance personnel, and distributors, it is essential to learn the uses of shoulder bolts. This will significantly improve your performance after learning their vital uses.

So, let’s take a look at some of the projects that you can consider shoulder bolts for. We’ll go through all of the available uses for shoulder bolts and weigh their numerous advantages. 

Top Ten Uses Of Shoulder Bolts

Here are the common uses of shoulder bolts applicable in various niches today:

Industrial Applications

Industrial applications include securing parts together using shoulder bolts. The most common industrial application is securing nuts or washers to threaded rods. It is also used to secure other components such as gears, pulleys, and shafts. They are appropriate for heavy-duty usage since they can withstand high torque loads.

Automotive Applications

Automotive applications include securing parts together by using shoulder bolts. This includes securing nuts or washers onto threaded rod ends. Shoulder bolts can also be used to secure gears, pulleys, shafts, and other components. They're made from stainless steel, making them durable and corrosion-resistant, hence a long life span.

Aerospace Applications

Shoulder bolts are widely applied in aerospace applications, including securing nuts or washers on threaded rod ends. They're also used in the aerospace industry to secure gears, bearings, and other components. Aerospace engineers prefer using these because of their durability and resistance to high temperatures.

Electronics Applications

Electronics applications include securing nuts or washers into the threaded rod ends. Although many electronics fasteners keep getting smaller, shoulder bolts still have their place. They secure gears in electronics and are used on bearing assemblies and other components, too. In fact, many engineers prefer using them because of their ability to withstand high temperatures and corrosive environments. 

Manufacturing Applications

Shoulder bolts are widely used in manufacturing entities to hold together machine parts. They are commonly used to secure nuts or washers onto the threaded rod ends. They are also used to secure gears, bearings, and many other components. Mechanical engineers will prefer shoulder nuts for their compatibility and ease of assembly.

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Home Appliances Applications

Shoulder nuts can also be used in home appliances. For example, they can be used to secure nuts or other components onto the threaded rod ends of washing machines. They can also be used in refrigerators, air conditioners, dishwashers, water heaters, etc. They are regarded as effective when compared to other fasteners.

Construction Applications

Civil engineers widely use shoulder bolts in construction projects. They are commonly used for joining parts when building bridges, roads, and other infrastructure. They are preferred for their strength and durability.

Agriculture Applications

Agricultural applications include assembling agricultural tools such as plows, tractors, harvesters, and other equipment. They are also used for connecting farm implements and other machinery. Farmers prefer using these bolts because of their durability and ease of installation.

Marine Applications

Marine applications include attaching boat hulls, propellers, and other marine equipment. They are also widely used for attaching fishing nets, anchors, buoys, and other items. Fishers prefer using these shoulder bolts because of their strength and durability. They are also easy to install.

Medical Applications

Shoulder nuts are used to assemble medical components and for alignment maintenance. They are vital gadgets in the medical fields such as orthopedics and surgery assembling tools. They are considered preferable due to their ease of use and efficiency.

Shoulder Bolts Can Enhance Your Next Project

Having quality shoulder bolts is vital to building any project. It ensures your project's efficiency, success, safety, and durability. 


Here at Big Bolt, we have various high-quality shoulder bots suitable for any project. Our readily available skilled workforce is always available to advise you on the appropriate shoulder bolt for your project. Contact us today and start working on your next project.

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