after I pull the locking c clips I just use a hammer and punch, the reason I ask as the head looks kind of like a Torxbit or spline key headcap (they're still covered in paint) that need removing first, but you say that,, that is just the head(stopper) of the pins, and that there is nothing I need to un-BOLT,to remove the pins, normally I would un-BOLT the four hinge bolts but the door I bought to 're place my rotten ones, one was cut on the hinges,,,, so it's just remove c clip and just hammer the pins with force and a punch and possibly a bit of heat may help worse case,scenario?