That s the small rectangular brass plate on the jamb that the striker slips into.
How to fix my bedroom door lock.
Chisel out only the area where the hinge will be seated try not to go deeper than you need to and try your best to keep the entire surface level.
Examine the striker plate.
Shut the door and try to lock it.
Tighten the hinge screws and then try adjusting the strike plate by loosening its screws and shifting it slightly.
The striker plate is.
Tug on the knob with the screwdriver still inserted in the hole.
Repairs range from making minor latch adjustments to repositioning the door.
Try applying wd 40 or a silicone lubricant if the latch is still catching in the door.
Small uneven bumps will push the entire hinge back away from the door jamb and undermine your efforts this will make a little bit of a mess when you re done.
If you find that the latch contacts the strike plate too high or too low make sure all the door s hinge screws are tight.
Slide the latch in and out to see if it moves smoothly and if not the door knob may be too tight.
How to fix a push button door knob that won t lock.
If that doesn t solve the problem try this trick.
The knob should come right.
How to fix a door that will not lock.
Inspect the shank of the doorknob for a small hole or indentation.
Step 3 align strike plate.
Loosen the knobs a little to relieve some of the pressure on the door and to free up the latch a little.
Tap the end of a chisel under the door stop on.
Door lock doesn t latch properly when a door latch doesn t click into position it usually means the latch and the strike plate are out of alignment.
If it won t lock open the door.