Tubular Locks

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Tubular locks are not to be confused with those similar to them, such as wafer tumbler locks, cylindrical wafer tumbler locks and pin tumbler locks. Tubular locks are used in the creation of elevator locks, locks for coin-operated washing machines, locks for vending machines, ATM locks, Kensington computer locks and bicycle locks, including the Kryptonite lock. Read More…

Tubular Locks Tubular locks are a specific type of mechanical lock known by many names, including Ace locks, radial locks, tubular pin tumbler locks and circle pin tumbler locks. In general, the lock's different names come from its round shape. The name "Ace lock" comes from the name of the company that first manufactured it.

Leading Manufacturers

Long Beach, CA  |  800-433-5554

As an ISO certified source for industrial hardware, Sierra Pacific Engineering & Products is a company you can trust in for excellent locks. Quality, service & value are the core to being a top OEM supplier and SPEP offers a wide range of additional products including quarter turn, compression & recessed latches, as well as a complete line of industrial hinges. Please call SPEP today!

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Sierra Pacific Engineering & Products (SPEP) $$$

Clifton, NJ  |  800-524-2575

We will work with you to custom design locks that will fit your needs exactly. We are committed to supplying a wide variety of locks including vending machine locks, cam locks, door locks and a broad selection of others. The average tenure of our engineers is over ten years and we want to put that experience to work for you! To learn more about our company and how to get started, email or call us today!

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Northeast Lock Corp. $$$

Elizabeth, NJ  |  800-834-9017

Maffey’s is a fully licensed locksmith providing functional and user friendly security products such as door and security locks as well as keys. Courteous, reliable and professional, we strive to provide lasting improvements for both home and workplace security. Maffey’s Security Group uses comprehensive planning and the implementation of physical security systems needed to secure your future.

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Maffey's Security Group $$$

Gainesville, GA  |  866-988-5625

At Ranger Lock, we’ve been committed to creating more secure locks and lock guards since we opened the doors to our company all the way back in 2002. One of our most popular products, the ATF-Compliant Lock Box, is consistently a best-seller from the Ranger Lock online store due to its rugged construction and durability. When you need a fully ATF-compliant lock guard, you need the Ranger Lock ATF-Compliant Lock Box.

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Ranger Lock $$$

Green Bay, WI  |  920-499-0022

VSI is North America`s largest producer of vehicle locks for the heavy truck market. Earning their position as a leader in lock & key solutions, VSI designs, produces & sells mechanical locks to major domestic truck suppliers & their international affiliates for production & aftermarket. VSI’s locks meet exact specifications and follow AIAG guidelines for quality & customer satisfaction.

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VSI, LLC $$$
placeholder image Sierra Pacific Engineering & Products (SPEP) Northeast Lock Corp. Maffey's Security Group Ranger Lock VSI, LLC

Tubular locks have a ring-shaped hole in the middle of the keyway. In the middle of this circular hole is placed a solid metal cylinder. Inside the gap between the cylinder and the keyway hole are six to eight pins. In a sense, tubular locks encase the bolt within a tube. Tubular lock pins are held in place by plugs that rest in the cylinder, as do driver pins and springs. While tubular locks usually have between six and eight pins, they may also have as few as four or as many as ten.

To work, a round key that is open in the center is inserted into the lock. The key has rectangular notches cut around its edges that correspond to similarly shaped plugs. When properly inserted, each notch depresses an individual pin to a certain height. In doing so, the lock cylinder is able to turn freely. While basic pin tumbler systems use pins that move vertically when pushed, the pins of tubular pin tumbler locks move horizontally when pushed.

Tubular locks are often mistakenly considered to be more secure than other types of locks, because they are used so frequently with coin-operated machinery. In fact, however, they can be picked fairly easily using a special tubular lock picking tool, the back end of a ballpoint pen or a hole-saw drill bit.

To combat the possibility of theft, manufacturers may either machine the middle pin of a lock with hardened steel or with a ball bearing in its center. However, tubular locks are still not recommended for high security applications.

To determine whether or not tubular locks are right for your application, reach out to a well-versed lock manufacturer with the details of your operation.

Tubular Lock Informational Video