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How to fit a Yale Cylinder type lock - DIY Tip 13


Info for drilling and fitting Yale and Era cylinder locks is available within the site. Choose the required size wisely. In terms of security, the Yale number 1 and 2 are the more superior.


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  • Select the position of the lock, use the lock as a template to position the screw fixings. Hold the lock up to the door and make a mark where the cylinder and fixing holes will be.
  • Drill the cylinder hole by using an auger or expanding drill bit, make sure you use the correct size.
  • Fitting sizes should be printed on the instructions that come with the lock, to avoid splintering as the drill passes through the thickness of the door to the other side, hold a block of wood on the opposite side of the door to allow the bit to drill into it on the other side.
  • Pass the cylinder mechanism through the door from the outside, use the screw provided to secure the cylinder to the mounting plate on the inside.
  • If the screws are too long, use a hacksaw to cut them down, you can also alter the length of the metal strip, which protrudes through the door and locates in to the lock back case, this operates the latch and is designed to be cut if it is too long.

Make sure the cylinder is aligned properly to allow the key to enter vertically.

  • Close the door until it is almost completely shut and then mark on the jamb (door frame) the position where the striking plate (keeper) will be fixed. Once you have determined this, chisel out the recess for the striking plate (keeper) and screw into position.

Any questions, email

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