I recently installed two MasterCraft doors from Menards. It has two holes in the door. One for the knob and another for the deadbolt. If you look at the edge of the door both holes are circular where the bolts will hit the strike plate.
I was able to get the door knob installed without issue because the door knob had the option to slip a circular head over the end. The deadbolt on the other hand does not have this option. It has a square/rectangle and that is it, while my door has a circular hole. I went and looked at the hardware store and all the deadbolts looked to have this rectangle insert for the door and none had a circular insert.
Guessing someone has ran into this before do you just take a chisel to it to create an area for a rectangular insert? I kind of feel like I shouldn't need to do this on a new door. Maybe I am missing something.
What I am talking about specifically are the holes on the edge of the door as seen in picture above. As you can see there is a circular and rectangle insert in this door. My door only has a circular insert for both deadbolt and door knob.