carpet tack(n = noun.artifact) - used to nail down carpets;
is a kind of tack

axminster carpet, black carpet beetle, brussels carpet, buffalo carpet beetle, call on the carpet, carpet, carpet beater, carpet beetle, carpet bomb, carpet bombing, carpet bug, carpet grass, carpet knight, carpet loom, carpet moth, carpet pad, carpet shark, carpet slipper, carpet snake, carpet sweeper, flying carpet, japanese carpet grass, red carpet, tack, tack hammer, tack on, tack together, tailor's tack, tie tack, water carpet, wilton carpet