Combination Locks

Find combination locks including combination door locks, electronic combination locks and more. Use the time-saving Request for Quote tool to submit your inquiry to all the combination lock manufacturers and suppliers you select.

Penn Lock Corp.
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Swoyersville, PA
800-679-5751
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Call Penn Lock for your standard and custom lock needs. We are lock manufacturers of standard cam locks and custom pin locks, vending machine locks, core removable locks and more. Orders are processed quickly and accurately, & our locks will be sure to meet your quality standards. Penn Lock is dedicated to exceeding all of our customers' service expectations. Visit our website or contact us today!
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SW Lock
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Union City, NJ
800-246-2234
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Since 1928, SW Locks has offered locksmith service, lock and door closures and repair and installation. Brand name locks such as Master Lock, Baldwin, Simplex, Arrow and more are offered. Our experience is up to date with high security experience. We make your community a more secure and safer place. We are just as concerned with our customer's needs and security as we were when we started.
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ISO certified manufacturer of industrial hardware. Quality, service & value are the core to being a top OEM supplier. SPEP offers a wide range of product including: cam locks, quarter turn, compression & recessed latches, as well as a complete line of industrial hinges. Same day shipping on most items. We have been awarded several patents & featured in periodicals for our cutting edge technology.
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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Industry Information

Combination Locks

Combination locks are locks that open only when their dial is turned to a predetermined position or sequence of positions on its dial face. These positions may be numbers or letters. Combination locks are not opened by a key but rather by the alignment of its interior parts in a specific position. When all of the rings inside the lock align, they allow a spring-loaded bolt to slide through, which releases the bolt and opens the lock. Simply closing the lock and moving the dial to a different position resets the lock.

In the past, the reliability of combination locks was questioned due to the seemingly relative ease of picking locks. More recently, however, better manufacturers of combination locks design false gates in the discs, which makes picking the lock extremely difficult. In fact, a lock with four discs can use any of 100,000,000 possible combinations, so guessing the correct combination is highly unlikely.

Two primary types of combination locks exist: hand and key change. Pushbutton lock, common hand combination locks, are frequently installed in office doors for security. In these locks, pushing three or four buttons in sequence or altogether releases a deadbolt that opens the door.

Combination locks are constructed to last a lifetime, and their parts are not intended to require repair or replacement. Typically constructed of steel, combination locks are also often coated to resist corrosion. Combination locks retain a reputation for durability and reliability and are utilized in a wide range of applications.