Lost somewhere on the Lost Coast

How rough was the road out to the Lost Coast? Rough enough to shake a hubcap off. These decorative covers are held on by plastic caps that look like bolts, but unless they’re screwed on just right the threads get stripped and... bye-bye.

This is my second set of hubcaps. The first ones got so loose I resorted to gluing them on. But they had to be removed to rotate the tires. So I got a new set off eBay. I checked the listings last night and there’s a guy selling these individually instead of the usual set of four. I could get just one, or should I get all four while I'm at it? At any rate, I’ll need to wait until I’m somewhere I can receive a shipment. Or I could just remove all the hubcaps and go with the rugged utilitarian look.