Originally Posted by Cleech
I was able to tighten a screw that connected side wall to shower wall. There is a one inch angle bracket installed to keep this connection tight. For now, all is well but I foresee that loosening and I will have to revisit.
So the door is fine. This is the actual side wall moving in and out near the door. Door frame and hinge are tight to the side wall.
I obviously misunderstood your first post. If you are trying to pull the wall back onto these angles, screws into the wall are not going to hold for long.
This is very similar to the mounting of the gas struts on the wall with screws - the screws just tear out with any load. The wall has extremely thin plywood on the inside, foam core, and a layer of fiberglass-like plastic on the outside.
My recommendation would be to use stainless steel machine screws and nuts through the wall to the L brackets. #10s, if they fit through the L bracket, are appropriate. For appearance's sake, put the screw heads on the outside. If a lot of pressure is needed, oval heads with finish cup washers will spread the load a little better. Caulk the screw holes to avoid any water intrusion under the screw head/through the hole.
I mounted the gas struts to the wall for lifting the roof similarly. #10 machine screws through the strut mount, with a plywood backing plate on the inside. Your L-bracket substitutes for my plywood backing plate. L-brackets can be added if more are needed to tie the wall to the cabinet frames and cabinet frames to the floor. Floor is 1/2" waferboard, so is pretty substantial for machine screws with washers and nuts underneath.
hope this helps a little better