NOMINAL KEY & SOCKET SIZE | W | Y | B | C | C | R | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
HEX WIDTH ACROSS FLATS | HEX WIDTH ACROSS CORNERS | LENGTH OF SHORT SIDE BOTH STYLES | SHORT STYLE LENGTH OF LONG SIDE | LONG STYLE LENGTH OF LONG SIDE | RADIUS OF BEND | |||||||
max | min | max | min | max | min | max | min | max | min | min | ||
0.028 | 0.2800 | 0.0275 | 0.0314 | 0.0300 | 0.312 | 0.125 | 1.312 | 1.125 | 2.688 | 2.500 | 0.062 | |
0.035 | 0.3500 | 0.0345 | 0.0393 | 0.3780 | 0.438 | 0.250 | 1.312 | 1.125 | 2.766 | 2.578 | 0.062 | |
0.050 | 0.5000 | 0.0490 | 0.0560 | 0.0540 | 0.625 | 0.438 | 1.750 | 1.562 | 2.938 | 2.750 | 0.062 | |
1/16 | 0.062 | 0.6250 | 0.0615 | 0.0701 | 0.0680 | 0.656 | 0.469 | 1.844 | 1.656 | 3.094 | 2.906 | 0.062 |
5/64 | 0.078 | 0.7810 | 0.0771 | 0.0880 | 0.0859 | 0.703 | 0.516 | 1.969 | 1.781 | 3.281 | 3.094 | 0.078 |
3/32 | 0.094 | 0.9370 | 0.0927 | 0.1058 | 0.1035 | 0.750 | 0.562 | 2.094 | 1.906 | 3.469 | 3.281 | 0.094 |
7/64 | 0.109 | 0.1094 | 0.1079 | 0.1238 | 0.1210 | 0.797 | 0.609 | 2.219 | 2.031 | 3.656 | 3.469 | 0.109 |
1/8 | 0.125 | 0.1250 | 0.1235 | 0.1418 | 0.1390 | 0.844 | 0.656 | 2.344 | 2.156 | 3.844 | 3.656 | 0.125 |
9/64 | 0.141 | 0.1406 | 0.1391 | 0.1593 | 0.1566 | 0.891 | 0.703 | 2.469 | 2.281 | 4.031 | 3.844 | 0.141 |
5/32 | 0.156 | 0.1562 | 0.1547 | 0.1774 | 0.1745 | 0.938 | 0.750 | 2.594 | 2.406 | 4.219 | 4.031 | 0.156 |
3/16 | 0.188 | 0.1875 | 0.1860 | 0.2135 | 0.2105 | 1.031 | 0.844 | 2.844 | 2.656 | 4.594 | 4.406 | 0.188 |
7/32 | 0.219 | 0.2187 | 0.2172 | 0.2490 | 0.2460 | 1.125 | 0.938 | 3.094 | 2.906 | 4.969 | 4.781 | 0.219 |
1/4 | 0.250 | 0.2500 | 0.2485 | 0.2845 | 0.2815 | 1.219 | 1.031 | 3.344 | 3.156 | 5.344 | 5.156 | 0.250 |
5/16 | 0.312 | 0.3125 | 0.3110 | 0.3570 | 0.3531 | 1.344 | 1.156 | 3.844 | 3.656 | 6.094 | 5.906 | 0.312 |
3/8 | 0.375 | 0.3750 | 0.3735 | 0.4285 | 0.4238 | 1.469 | 1.281 | 4.344 | 4.156 | 6.844 | 6.656 | 0.375 |
7/16 | 0.438 | 0.4375 | 0.4355 | 0.5005 | 0.4944 | 1.594 | 1.406 | 4.844 | 4.656 | 7.594 | 7.406 | 0.438 |
1/2 | 0.500 | 0.5000 | 0.4975 | 0.5715 | 0.5650 | 1.719 | 1.531 | 5.344 | 5.156 | 8.344 | 8.156 | 0.500 |