bumper bolts wanted

Hello everyone I am looking for 4 bumper bolts with the rounded head and square flange.My bumpers are in too bad of shape to have rechromed so I'm going to paint them body color (hemi orange).But I think body color bumpers look better with out the bumper guards and the chrome ones one better with the guards.Doesn't have to be great chrome as I'm going to paint them.Even some with the chrome plate off would be fine also.Thanks in advance.FWIW they are going on a 70 dart.
BTW I do not mind getting new ones I just don't know where to look.