Cover for fastener
FIG. 1 is a plan view of a cover for fastener showing my new design; 
     FIG. 2 is a left side elevation view which is similar  to the right side elevation view; 
     FIG. 3 is an elevation view on a plane perpendicular  to that of FIG. 2 which is the same as seen from both  sides of the device; and 
     FIG. 4 is a view in cross section taken on the plane  indicated by the line 4--4 in FIG. 1 and looking in  the direction of the arrows.