To hammer nails in your dream represent your tenacity, persistence and ability to drive a hard bargain. Also consider the pun, “getting nailed” which refers to a sexual innuendo or which means getting caught with something. Alternatively, the dream may also point to another popular phrase “hitting the nail on the head”, which suggests that you have fully resolved a situation.
To see nails in your dream symbolise long and hard work for little compensation and pay. It may also be analogous to some rugged or tough force.
To dream that you hurt yourself with a nail suggests that you need to be careful with what you say.
To dream that you are pulling nails out implies that you are not ready to commit to a situation or relationship. If you dream of pulling nails out of a tree, then it highlights some environmental issue that you are concerned about or involved with.