Squeeeeak No More Kit Eliminates Floor Squeak Thru Carpet & Hardwood - $15 (Western Branch)

Squeeeeak No More Kit Eliminates Floor Squeaks using your drill to set a screw to the proper depth where it will break off below the floor line for an almost invisible repair.
Works on carpeted and hardwood floors.
Comes with setting tool and screws.
Screw refills are available from the Blue big box hardware store.