Nickel plated oval phillips head wood screws measuring .595" overall, head diameter .201". I checked a Genuine Gretsch bezel screw and measured .495" length with a .194" diameter head. Yes, these generic screws will fit the plastic pickup bezels on your '60s Gretsch guitars with Filtertrons and Hi Lo Trons etc. Also fits similarly equipped new Gretsch guitars. Bezel not included; it is shown so folks can understand what these screws are for.