Found Door Jamb Switches 1/2x20

I got the door jamb switches from NAPA (for the chevy van) and they do thread into the door jamb I was skeptical at first but it did tighten up nice but as I suspected from the picture online the shaft is too long and the door wont shut all the way the switch does work but I think if I cut the copper tube about 1/8" shorter without damaging the plunger it will be fine.