Our sliding doors do have those screws at the bottom and top edge but they are on the side of the door compared to concealed inside a hole as you have shown in your photos.
Sliding door doesn t slide.
To reshape a bent catch remove it and clamp it in a vise.
If the door still doesn t slide smoothly the rollers under the door either need adjusting or are shot.
If you see any clear the debris and wash the tracks with warm soapy water.
If after inspecting the track rollers and alignment and your door is still difficult to open and close it may be time for replacement.
Look for the door manufacturer s name on the edge of the door or the hardware manufacturer s name on the roller.
Give the screw a clockwise turn and test to see whether the door slides easier.
Using pliers or a hammer bend the catch to the proper angle.
First check your sliding door tracks for any debris or dried liquid.
Be sure to check between the screen door and the glass.
You can order rollers and other door parts for repairing sliding doors through lumberyards and home centers or online.
I unscrewed all these 4 screws and then on pulling on the door the frames came off the glass now we have a frame less door which still doesn t move easily.
Prime line black diecast sliding door outside pull keyed adams rite and w f model c 1139 16 00 16 00.
Prime line sliding glass door handle set 3 1 2 in diecast and wood black hook style internal lock model c 1095 21 98 21 98.
Never leave the glass door unattended.
Turning this screw raises or lowers the roller.
If the door becomes even harder to open turn the screw in the opposite direction.
Then lift the door up and out of the track laying it down carefully across two sawhorses.
Sometimes a sliding door sticking can be caused by the door simply being too old and has underwent years of wear and tear.
If you re confident that there s nothing else blocking the sliding patio door track then it s time to lubricate.
Most sliding doors have a mechanism called an adjusting screw located at the bottom of the door ends.
Sometimes with a sliding door it isn t the track or rollers working improperly it s the catch.
First slide open the door completely and remove the head stop.