I put Schallers on all my electrics, and in my roadie days on every one I cared for; except for my MII garage-sale rescue Tele, the Schaller screw has been bigger every time. Also, I put them on my son's Strat, but he's a bit of a beanbag about keeping track of stuff & lost the strap; used the Schaller buttons like regular ones for years.
Peter