| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.190 INCHES |
| THREAD QUANTITY PER INCH | 32 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND |
| 40.0 ROCKWELL C MAXIMUM OVERALL |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| HEAD STYLE | HEXAGON |
| HEAD HEIGHT | 0.140 INCHES MINIMUM AND |
| 0.172 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.428 INCHES MINIMUM AND |
| 0.440 INCHES MAXIMUM |
| SHOULDER DIAMETER | 0.2485 INCHES MINIMUM AND |
| 0.2495 INCHES MAXIMUM FIRST SHOULDER |
| SHOULDER LENGTH | 1.948 INCHES NOMINAL FIRST SHOULDER |
| SHANK UNTHREADED HOLE DIAMETER | 0.070 INCHES MINIMUM AND |
| 0.080 INCHES MAXIMUM FIRST HOLE |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT SHOULDER |