before you begin make sure you're wearing the right safety gear for the site you are working on and tools you are using all you need for this adjustment is a Phillips head screwdriver close the door and check the alignment of the handle against the striker plate if the striker plate appears to be too high or too low use your screwdriver to loosen the screws hidden within the two holes move the striker plate into the desired position and tighten the screws again check that the handle meets the striker plate properly and adjust the striker plate again if required the two exposed screws on the striker plate control the level of movement allowed when the door is locked tighten these screws to further restrict this movement or loosen to allow a little more flexibility you