Defiant III. I've noticed how loose my front handle is. Wanting to fix this. It looks like I could probably tighten the nut and bolt/screw but something still doesn't seem right to me. I've noticed that on the inside of the stove above the opening of the door is a sort of protruding arc. I would expect that to help the door lock chit. My handle turns full 360 with out touching that which makes me think something else is missing. Should the front handle turn 360 when shut?