Used to identify shutters, screens, storm windows, etc. Each nail has a single digit from 0 to 9 on its head. The nails measure about 1/4 inch across the head and about 1/2 inch long. Solid Brass. WE ARE SOLD OUT OF THESE BRASS NUMBER NAILS. CLICK HERE TO SEE ANOTHER REPRODUCTION NUMBER HEAD NAIL. Number Head Nails Available Now Antique Screen Tacks and Copper NumbersHere are some examples of antique number head nails. Click here to see reproduction nails.