visible gap at the bottom of a security screen door
Is this a adjustment screw or not?
Dear Community,
I have this sliding screen door that has a visible large gap between the door and the door frame at the bottom. Did some googling and found maybe the roller needed to be adjusted. But couldn't allocate any adjustment hole like some online article suggested. The only hole that's avaliable is very small and I can't tell whether it's a hex key hole or not.
Can someone recommend the tools / method i can try to fix the gap issue here?
Thank you very much in advance.