EXACT HIT

Determining the place in the door jamb to nest under the lock bolt, cut out a paper rectangle, the shape is equal to the end of the bolt. Moistened with water one side of this rectangle, attach it to the end of the bolt. Then brush glue on the other (front) side.

Close the door and turn the key push the bolt to the door jamb. Paper rectangle pasted to the door jamb exactly where you need to hollow out the nest.