If your 1950-1967 Beetle's doors drop on the hinge when you open them, or you find yourself having to lift the door when you shut it, your hinge pin is worn and needs replaced! Depending on how worn your hinge is, or if an oversized pin has already been used, you may have to ream out the hole and use oversized door hinge pins.
This condition is caused by age and wear conditions and an oversized pin is a simple solution for you. This 2nd Oversize Upper Door Hinge Pin has an 8.2mm diameter and features threads to mount the exterior side view mirror.