I believe the only way to attach the Fulton style visor is with screws, and those obviously have to go into holes drilled into the truck. Ive had the same reservations you have. I’ve never heard of an alternative clamping method.


Chuck
1950 Chevy 1/2 ton (all original)
1951 Chevy 1/2 ton (future streetrod)
1941 Chevy coupe
1938 Chevy coupe streetrod