Sheet metal nail
FIG. 1 is a top perspective view of a sheet metal nail showing my new design; 
     FIG. 2 is a bottom perspective view thereof; 
     FIG. 3 is a top plan view thereof; and 
     FIG. 4 is an end elevational view taken from the right of FIG. 3. 
     The sheet metal nail is shown broken away to indicate indeterminate length.