Billet screw cone spikes are polished 5/8" tall solid aluminum. They each come with a screw for application. They're great for complimenting your Gaming or PC case mods with an aggressive look. Mnpctech used these in the Gothic theme of the "Warlords of Draenor" case mod for Antec.
Height is 5/8" (16mm) and 3/8" (9mm) diameter.
Made in U.S.A.