Combination key and lock for nuts or bolts

FIG. 1 is a front elevational view of a combination key and lock for nuts or bolts showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof, with the key shown rotated ninety degrees, and the right side being a mirror image of that shown;

FIG. 4 is a top plan view thereof, with the key shown rotatede ninety degrees and the bottom being identical in appearance;

FIG. 5 is a front elevational view of the lock portion thereof, with the key omitted for clarity of illustration;

FIG. 6 is a right side elevational view of the key portion thereof, with the lock omitted for clarity of illustration, and the left side being a mirror image of that shown;

FIG. 7 is a vertical cross-sectional view of the lock portion thereof, taken along line 7--7 of FIG. 5; and,

FIG. 8 is an enlarged fragmentary horizontal cross-sectional view of the key portion thereof, taken along line 8--8 of FIG. 6.