Originally Posted by crumpybumpy
Hello--I live in a beautiful old house from the 1920's that has these metal old fashioned window latches. (See attached picture). The top screw that this latch should be attahed to broke off at the head and the screw body is still in the metal frame. I am assuming I need to drill out this screw body but I have never done this before. I have an electric drill with various drillbits but don't know very much about what to use to drill it out or how to tell what size drill bit I need. Please help! Thanks.
Hello crumpybumpy, It's hard to tell from the picture but does the screw through to where can grab it from the other side? If so, then maybe can use pliers to grab the fragment remaining and twist it loose. If the screw doesn't go through, then you want to use a drill bit half the size of the opening & place the bit in the center of the broken screw and use a low speed setting to drill into the broken screw, being careful not to go too far and damage beyond the screw.
Once you have done that you can take a scratch awl, or something with a narrow tip that is tapered. Insert into the hole, make sure it's firmly planted, and slowly turn the screw back out.
If the screw is not in too deep, you can also purchase a device called a screw extractor by Grab-it. With one end you drill V groove into the broken remaining piece , then you flip it over and run the drill in reverse to remove the broken screw, see photo. I own the Grab-it, and it works great in certain situations where the broken screw isnt too deep.
Hopefully one of these suggestions work, PM me if you have any more questions.