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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.
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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.

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Sierra Pacific Engineering & Products (SPEP) $$$

Wheeling, IL  |  800-733-3907

Illinois has been manufacturing and distributing quality locks for 40 years. As a member of The Eastern Company, its state of the art tooling and CAD programs allows it to design and produce a number of varying high quality products. Illinois has the engineering expertise, technology and manufacturing capabilities to provide the superior solution you are looking for.

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Illinois Lock Company $$$

Southington, CT  |  866-699-3575

One of the world's leading lock manufacturers, CamLock Systems provides high quality products and the technical expertise needed to meet any industrial locking needs. With nearly a century of experience, we offer unparalleled knowledge, customer service and support. CAD design, rapid prototyping and routine inspections insure that our locks and locking systems provide the security you need.

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Camlock Systems, Inc. $$$

Brooklyn, NY  |  718-345-9898

Our specialty is custom hardware fabricated to your specifications. Our lock manufacturing capabilities include 3-slot and key locks, pad locks that are keyed solid brass, long shackle solid brass padlocks, disc padlocks, combination locks & key locks with briefcase hasp. Quality locks since 1925! We care about offering our customers quality products & service. Visit our website or call us today!

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Crest Lock Co., Inc. $$$
placeholder image Sierra Pacific Engineering & Products (SPEP) Illinois Lock Company Camlock Systems, Inc. Crest Lock Co., Inc.

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