Cover Screw Trim on Exterior 09 Jayfeather

[MadCatX]

I'm confused about the sizing on the trim that fits over the screws on the exterior of my 09 Jayfeather 213.
The opening is around 15mm but if I flatten the trim material completely, it's just shy of an inch wide.
I think this is the material but I'm not positive.
"JR Products 10121 White 100' Premium Vinyl Insert"
Any advice would be greatly appreciated!

[Tunce the traveler]

That’s it and if you live near a small independent repair RV center there’s a good chance they’ll sell it to you by the foot rather than a 100’ roll.

[MadCatX]

Perfect. Thank you. I'll add it to my spring shopping list. I don't live anywhere near an RV dealer unfortunately.