Features ：
Common nails are strong and stiff, and their shanks have greater diameters than other nails. Both common and box nails have
notches near the head of the nail. These notches allow the nails to hold better. Some will have screw-like threads at the top of
the nail head for extra holding power. Box nails have thinner shanks than common nails and shouldn't be used for framing
construction. When nailing two boards together, both types of nails should completely penetrate one piece of wood and should
penetrate the other piece with half its length. This ensures the nail is strong enough for the job.
