We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What is a Barrel Bolt?

By Larry Ray Palmer
Updated May 17, 2024
Our promise to you
About Mechanics is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At About Mechanics, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject-matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

A barrel bolt lock, also called a sliding bolt lock or a shoot bolt, is a simple locking system used to secure a door from a single side. The barrel bolt lock has two main components: a sliding metal bar and a catch plate. The catch plate is mounted on the door frame in such a way that the sliding metal bar or bolt can easily fit inside the opening of the catch, thus physically blocking the door from being opened until the bolt is retracted.

Although the majority of barrel bolt locks have a round bolt, some models incorporate a flat sliding bar. In all cases, the bolt will have some kind of knob attached or built into the design of the bolt, allowing the user to grab the knob and slide the bolt into the hasp. In some cases, the bolt might rotate at the end of its slide to place the knob in a locked position or have some other security measure in place to avoid having the lock compromised.

Barrel bolts are available in many metal types to suit the needs of specific projects. A lightweight brass barrel bolt might be a stylish yet moderately functional locking system for a kitchen cabinet or curio case. For situations requiring a sturdier, more functional barrel bolt lock, such as securing the front door of the home or the gate of an animal enclosure, a stainless steel barrel bolt might be the more appropriate choice.

In addition to the various metals used to create barrel bolt locks, barrel bolts also come in a variety of sizes. Some barrel bolt locking mechanisms are smaller and serve more of a cosmetic purpose than an actual functional purpose. These barrel bolts can have a total bolt length of less than 2 inches (about 5 cm), and the bolt might be 0.25 inches (about 6 mm) or less in diameter.

Larger barrel bolts, including a tower lock, are used when security is required. An example of this application is the use of a barrel bolt lock to secure the front entry door of a home. With bolts as long as 8 inches (about 20 cm) and bolt diameters of 0.75 inches (about 18 mm) or more, these barrel bolts provide a strong yet low-cost security solution for applications in which a keyed locking system is not required or desirable.

About Mechanics is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Discussion Comments
About Mechanics, in your inbox

Our latest articles, guides, and more, delivered daily.

About Mechanics, in your inbox

Our latest articles, guides, and more, delivered daily.