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How to Replace Door Locks The first line of defense is your door lock. It will stop unauthorized access into your home. Locks might need to be replaced due to signs of wear and tear, or other situations like moving into a new residence or a burglary. You can determine the size of your cylinder by measuring the distance from the center of the knoblock cylinder to the adjustment screw. This measurement will allow you to select the appropriate lock. Deadbolt Installing a deadbolt is a excellent way to protect your door from burglars. The bolt extends into the strike plate on the doorframe when it is locked, making it much more difficult for burglars to gain entry through the door. A single-cylinder deadbolt is activated with a key on the exterior and a thumb-turn device that is located inside. A deadbolt is only effective when it's properly installed however. upvc door locks replacement stevenage repairmywindowsanddoors is first necessary to find out if the door has an existing hole for a deadbolt or if you have to bore it out. Mark the location of the hole for the deadbolt on the surface of the door using the template included with the lock installation set. Then, you can use your tape measure to determine the height the deadbolt needs to be. Mark this high point on the door's edge and use speedsquares to draw a straightline across the mark that you made for the bolthole. Then, use a drill to bore this hole until it is on the other side of the door. This could take a while. Then, sand the hole and the edges of the door so that it's smooth. At this point, it's a good idea to stain or paint your door. Remove any screws that are visible from the deadbolt. This will reveal the front and rear assembly of the deadbolt, as well as its internal bolt. Then, unscrew the bolt and replace it with a brand new bolt that matches your door hardware. The bolt is typically connected to a setplate, which you will have to remove. After this is done then you need to chisel out the area for the strike plate on the door frame. If your strike plate is misaligned, it's likely because the previous installer didn't mortise it correctly or a weatherstripping popped up and changed the strike's position. It is necessary to re-mortise the strike plate and possibly even the deadbolt itself to fix this issue. Once this is completed Test the deadbolt by closing it and locking it. Be sure the bolt is extending into the strike plate and then test the key to make sure it closes and opens easily. Knob It can make your business and home less secure if the door knob is worn. It could also make opening and closing the door more difficult, so it's a good idea for you to replace the knob. It shouldn't take you more than 30 minutes. Use a screwdriver or pliers to remove any knobs or handles. Be careful not to scratch other components of the door. Spray WD-40, or a different dry lubricant on the mechanism of your door knob before you begin. This will allow the new lock slide smoothly as you turn it. It is essential to choose the best knob and handle that matches your current doors to ensure proper operation. If you don't have a matching knob you'll need to purchase a new doorknob and latch plate. Before you begin the replacement process, look over the knob you replaced to determine which screws are holding it in place. If there aren't any screws you can make use of a screwdriver and wedge it between the cover plate and the hidden screws plate and remove it. After taking the knob off examine it for evidence of damage or rust. It's important to clean it off if you notice any scratches or dents, but you shouldn't have to do anything if the knob is in good condition. Now it's time to install the new one. You should first examine the two knobs in order to make sure that you've selected the appropriate one for your door. You'll need to choose one with an extended rod that is interlocked with the rod mechanism of the other knob. Once you've positioned the new knob in the hole in the door, carefully slide it into the latch. Thread the latch plate screws downwards, then test the spring by pressing down on it repeatedly. The latch should spring back up each time. Then, put in the new knob and connect it with the rod mechanism on the previous knob. Attach the other long screws from the knob's interior through the hole for the cylinder on the doorknob outside and secure it. Latch A latch is a steel piece that extends into the doorjamb in order to hold it shut. The latch is operated either via a knob or handle located inside the door, or by a thumb-turn on the exterior. The latch can be secured by a deadbolt to keep thieves from breaking through the glass. It can also protect against intentional or accidental closing by pets or children. You can install an entry point with either a single-cylinder deadbolt, or a double-cylinder deadbolt depending on your preferred level of security. Installing a latch follows the same steps as installing a deadbolt, however, there are a few distinctions. To ensure that the new lock will fit first, measure the setback on the doorjamb using an instrument such as a tape measure. The setback is the distance from the edge of the doorjamb to the middle of the hole to accommodate the faceplate for the latch. The standard setback is 2 3/8 to 2 3/4 inches. If your setback is greater, you may need to purchase a latch that is larger from a locksmith or hardware store. Next, drill a hole for the latch plate at the edge of the doorjamb. Utilize a chisel to smooth out the mortise for the latch and ensure it's deep enough to allow the faceplate of the new latch to sit in a flush position with the doorjamb. Place the strike plate in place to make sure it is positioned correctly. If the strike is placed too high, the door can be kicked in or pressure imposed on it using a crowbar or tire iron. This could also cause cracks in the doorjamb. This can be corrected by drilling a new hole in the doorjamb and then removing the core from the hole that was previously made. Installing the new strike plate is the final step. This can be accomplished by fixing the new plate to the existing screw holes. Then apply wood putty to fill in the holes from the previous screws and the bolt hole that is not used. When the putty is dry then sand it to a smooth finish for an elegant finish. Strike The piece of metal that connects the deadbolt and latch when the door is closed is an electric strike. It is a vital component of the overall security of a lock since it keeps the door shut and also provides additional resistance to force or kicks applied to the door. If a door has been equipped with an electric strike, it can only be opened by a key or the control unit that governs the electrical impulses. In the past, installing an electronic strike was as simple as cutting a piece of a doorjamb, which would remove the latchbolt on a cylindrical lock from the pocket that is inside the strike. This change can be an inconvenience in regards to the appearance of openings and also exposes the mechanism of the latchbolt and keeper to unintentional users. Recently, several electric strike manufacturers have developed an innovative type of electric strike dubbed the "No Cut" strike that doesn't need a cutout in the doorjamb to function. These strikes use a special design that allows the latchbolt and keeper to slide into the pocket without damaging the doorjamb's faceplate. The strike has an internal ramp which lifts the latchbolt and keeper when it receives an indication from the reader. The latchbolt and keeper are lifted higher up the ramp due to retract. When the door is closed, the deadbolt stays at a lower position and the latchbolt retracts into the keeper. Installing an electric strike can be an easy process, particularly in the case of replacing an existing strike door. However, if you are upgrading to an electric strike in an access control system, you'll have to ensure that your new system is compatible with the model of lock you've chosen to install. It is also necessary to make sure that the strike is connected to your access control system and that it is configured for fail-safe operation. One way to protect against intrusions by thieves is to upgrade the strike on your doors to a heavy-duty strike plate. The plates are made of up to six screws of three inches instead of two screws of three-fourths of an inch. These longer screws make it harder for people to break the frame and reach inside to turn the piece that turns the thumb of a single cylinder deadbolt.
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