I replaced the double wooden doors with metal doors on the shed. I am looking for simple, spring loaded latches to mount on the inside top and bottom of each door where the latch bolt slides into the top jamb and floor. Commercially built sheds have these "D" shaped, spring loaded latches that you pull down and twist to slide the bolt down and open the door. Can't find them in teh Big Box stores or Tractor Supply. I have a pedestrian door to access the shed and do not need an exterior latch or lock for teh double metal doors. Any suggestions (store/online) were to get these latches?

Thanks