Wing type Cowling fasteners 415-c

Same here! At some point my coupe has the nose bowl replaced, and the bottom of the cowl sides have a long reinforcing patch due to the usual stress cracking. Due to one or both of these jobs the fastener alignment is better on one side than on the other.

I reckon that someday I'll put in a new nose bowl (the replacement was obviously... well-used) and maybe cut off and replace the cowl reinforcing strip and see if I can get the alignment better than the last guy. But that's all going to wait for that "someday" new paint job project.

Only odd thing is that one side, it is easier to fasten them the opposite that the other side. Once you install the wing style

Same here. Mine are camloc #5 wings www.aircraftspruce.com/catalog/pnpages/4002-5W.php

Mine are size 5 camlocs. Not DZUS type. Are your camlocs or DZUS? My camloc style we're extra -5’s, I happen to have the exact amount needed in my toolbox.  Cad Plated Wing Stud-5
4002-5W

I replaced straight slotted on one side and cross tip on the other side with wing-nut style. Will look at what size they are today and post it later.

early Coupe a lot of thew had wing type fasters. there are also Camlock look at them also in Spruce. We cannot see what your fasters look like.