How efficient is a screw?

Ground screws are screws that have been ground into a fine paste in an industrial tumbling machine. They are extremely useful as a grout for tile. the term would apply to the green screw you find in...

It is what it is. In ebonics it would read: It aint' a watermelon...

Drill a hole and use a plastic anchor.

of course it is the iron screw because it is made up of minerals that rust faster then metal

Usually with the tire iron/wheel wrench included with the jack. If that is missing, try a ratchet with a socket that fits. I've even used a screwdriver to twist it half-turn by half-turn.