I am currently building a smoker on a trailer and I am looking for some latches for the doors. I have three doors and I am looking for the kind of latches that tighten more the more I turn it. I have had no luck finding these online.Maybe one of you can help, or suggest a different kind of latch to use. Here is a picture of the latch I am looking for. As you can see, the handle/latch turns into an angled slot that forces the door tighter by turning it further.