See 360 Yardwares selection of deadbolts. Any deadbolt can be ordered as a double cylinder deadbolt. Another possibility for a lockable. Double%20cylinder%20deadbolt%20using%20screw%20caps.jpg' alt='Double Cylinder Deadbolt Lock Installation' title='Double Cylinder Deadbolt Lock Installation' />SABS tested safe for secure storage of valuables. Complies with SANS 7512008 specification. High security seven lever key lock. Available in Two sizes. Door knobs, pulls, lock sets other accessories hardware installation instructions and manuals resources from Emtek Products, Inc. Kwikset Single Cylinder Satin Nickel Deadbolt Featuring SmartKey is designed to offer maximum security, performance and durability. Types Of Locks Security Snobs. When looking at purchasing locks for your home or business, the amount of options can certainly be overwhelming. There are many different types of locks and several different security factors to consider before purchasing. This page will explain the different types of locks and the security features that should be considered. Although there are many types of locks, the four most common are padlocks, deadbolts, knob locks, and levers. Padlocks are the only type of lock that is typically not permanently attached to anything else. Padlocks come in a range of sizes, are free standing and portable, and are one of the most easily recognizable types of lock. Padlocks come in two main varieties combination and keyed. Combination locks have one or more number dials that open the lock when the correct combination is entered. They are often easy to decode or shim open. Keyed padlocks have several options to consider. There are rekeyable and non rekeyable padlocks. If a padlock is non rekeyable, then you cannot change the key that opens the lock for example to make it use the same key as your house. Padlocks can be key retaining or non key retaining. A key retaining padlock does not allow the key to be removed while the padlock is open. Finally, padlocks can have a shrouded shackle. This is an extension of the body where the shoulders of the padlock raise up the sides of the shackle to make it far harder for bolt cutters to cut the padlock. Deadbolts are generally installed on external doors and have a few more options to consider than padlocks. Deadbolts come in three primary varieties single, double, and lockable thumbturn. Single cylinder deadbolts are found on most American homes. Run Java Programs In Windows 7. They use a key cylinder on the outside and a thumbturn rosary on the inside to open or close the lock. These deadbolts have one primary weakness. If access to the inside is possible via a nearby window or even through the peephole using simple tools, the door can be opened using the thumbturn. A double cylinder deadbolt uses a key cylinder on the inside and the outside of the door to solve this issue. These have the clear disadvantage of always requiring a key to open the door from the inside if it is locked. This can pose a significant problem in a fire or other emergency situation. If used in a residential situation, it is strongly recommended that a key is left on the inside when people are present to ensure a safe exit in an emergency. The final type of deadbolt is a hybrid between a single and a double deadbolt, and is called a lockable thumbturn. It features a thumbturn on the inside that works like a normal single cylinder deadbolt, except the thumbturn can be locked using a key so it cannot lock or unlock the door. This means in a residential situation, the thumbturn can be left in an unlocked position while people are inside the house, and it will operate exactly like a standard single cylinder deadbolt. When everyone is leaving, especially for extended periods of time, the thumbturn can be easily locked so that even if someone has access to the door from the inside, the deadbolt cannot be unlocked. This type of deadbolt provides maximum flexibility and security in most situations. All deadbolts that we sell are rekeyable, however, products from some vendors are easier to rekey than others. Knob locks are frequently installed in residential situations on exterior doors in addition to deadbolts, and are sometimes used as the primary source of security for doors. First and foremost, it should be said that knob locks should virtually never be used for security on external doors. The problem lies in the fact that the lock cylinder is in the knob itself and not the door. In almost all setups, they can be broken off the door with a hammer or bypassed using pliers or a wrench behind the knob, completely bypassing the locking cylinder. If you currently have knob locks, consider replacing them with simple passage knobs as it will provide almost as much security as long as you are using deadbolts on the same doors. When purchasing complete knob setups it is important to ensure the proper handedness and backset. For more details please see our. BacksetHandedness page. Lever handle locks are frequently used for inner doors in commercial settings. They are easier to open than knob locks as they have a large push down style handle rather than a knob that one must grasp and turn. Frequently when handicap accessibility is important lever locks are used. Our lever handle locks are ADA accessible and can be changed between left and right handedness. When purchasing it is important to measure the proper backset see our. BacksetHandedness page. Levers can frequently be the target of torque attacks excessive pressure applied to the handle to try and force the lock. Some levers are clutch levers meaning if they are forced they just turn rather than apply pressure to the lock. Cam locks are used in a variety of applications but are most frequently found in filing cabinets, mailboxes, and lower security OEM applications. They come in several different lengths and can use a variety of tailpieces or cams to interface with another locking mechanism. There is a very large variety of cam options, and we suggest you see our. CamsTailpieces page. They can rotate clockwise or counter clockwise and the amount of rotation can be limited to 9. Rim cylinder and Mortise cylinder locks are frequently found on commercial doors, entry glass doors, and some apartment doors. While rim locks are very similar to mortise locks many of our Abloy locks are rimmortise combo locks the actual hardware they are used on greatly differs. Rim cylinder locks are generally used in rim latch locks which are mounted on the inside of the door. Rim cylinder locks always have a long metal piece extending out the rear of the lock that runs through the door into a locking mechanism on the opposite side of the door. Rim locks are held in place by two screws from the inside that screw into the back of the rim cylinder. By contrast, mortise cylinder locks are threaded and actually screw into mortise hardware that is mounted within the door. They are held in place by a set screw and utilize a cam to actuate the locking hardware. Mortise cylinders come in several different lengths and there is a large variety of options for the cams depending on the exact mortise hardware they are being used in. We suggest reading our. CamsTailpieces page for more information. Euro profile cylinders sometimes called DIN cylinders are frequently used in locking devices in Europe and other parts of the world. They are also used in North America in some sliding glass door locks and room dividing doors. They come in several varieties single cylinder one sided, double cylinder locking cylinder on each side, and single cylinder with thumbturn locking cylinder on one side and thumbturn on the other. The euro profile cylinder is a fairly standard form factor. The exterior and optionally interior lengths do vary, but the rest of the dimensions are fairly standard. Euro profile cylinders are held in place by a single screw that runs through the middle of the cylinder in most applications. Due to this single small attach point the euro profile cylinder can be easily snapped off the door if it is not of proper length or reinforced. Wall mounted locks are locks that are actually mounted in the wall. The most common type of wall mounted lock would be the Knox Box or firemans box style lock found in many larger businesses as an emergency access to the buildings keys. Wall mounted locks can be used for more than just key storage. Some act as small safes or item deposits. Installation is generally done at time of construction although some wall mounted locks can be easily installed into existing buildings. Most wall locks can be mounted in a variety of wall surfaces.