Hex Security Key | |||||||
Nominal Size |
Hexagon Width Across Flats |
Length of Short Arm |
Length of Long Arm |
Hole Size | |||
Max |
Min |
Max |
Min |
Max |
Min |
+ .005 | |
1/16 |
.0625 |
.0615 |
.656 |
.469 |
1.844 |
1.656 |
.038 |
3/32 |
.0937 |
.0927 |
.750 |
.562 |
2.094 |
1.906 |
.050 |
1/8 |
.1250 |
.1235 |
.844 |
.656 |
2.344 |
2.156 |
.075 |
9/64 |
.1406 |
.1391 |
.891 |
.703 |
2.469 |
2.281 |
.084 |
5/32 |
.1562 |
.1547 |
.938 |
.750 |
2.594 |
2.406 |
.097 |
3/16 |
.1875 |
.1860 |
1.031 |
.844 |
2.844 |
2.656 |
.102 |
7/32 |
.2187 |
.2172 |
1.125 |
.938 |
3.094 |
2.906 |
.123 |
1/4 |
.2500 |
.2485 |
1.219 |
1.031 |
3.344 |
3.156 |
.123 |
5/16 |
.3125 |
.3110 |
1.344 |
1.156 |
3.844 |
3.656 |
.201 |