Nail / Nails dream meaning is explained below using 1 different source. Each interpretation is shown with its source.
Interpretation 1 — Stearn Robinson - Tom Corbett
A dream of hammering nails predicts that you will, in fact, by dint of hard, slogging effort, be able to achieve something you thought beyond your reach.
To see shiny and/or new nails in your dream forecasts unexpected news, but bent or rusty nails signify either minor reverses or slow progress.
See also Fingernails.
Source: The Complete Guide to Interpreting Your Dreams • Author: Stearn Robinson - Tom Corbett