They are the same thing.
A drawing pin (British English) is known as a thumb tackor a push pin in American English. Other nails for a drawing pin come from the materials that they are made from, such as, brass tack, tin tack, and iron tack.
thumb tack already is an English word.
Thumb tack sinks in water and floats in mercury.
a thumb tack is a simple machine called the lever
Pull it out.
thumb nail, thumb tack, thumb screw, thumb print
it made of cut nails
a thumb tack
Take it to the vet now. That thumb tack can poke or rip holes in your cats organs or get stuck in an organ causing a serious infection.
This is your chance to become a scientist. Weigh the contents of a packet of thumb tacks, and divide the result by the number of tacks. This will be the average weight of a thumb tack.
Thumb tack
2cm ====================== I disagree.... 1 cm at the most.