| FASTENER LENGTH | 1.765 INCHES MINIMUM AND 1.812 INCHES MAXIMUM |
| GRIP DIAMETER | 0.2487 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM |
| GRIP LENGTH | 1.296 INCHES MINIMUM AND 1.328 INCHES MAXIMUM |
| HEAD HEIGHT | 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| HOLE CONFIGURATION STYLE | HEXAGON FLATS |
| HOLE DIAMETER | 0.046 INCHES MINIMUM AND 0.056 INCHES MAXIMUM |
| HOLE QUANTITY | 1 |
| HOLE TYPE | DRILLED |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT-MACHINE, CLOSE TOLERANCE, AIRCRAFT |
| NOMINAL THREAD DIAMETER | 0.2500 INCHES |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.469 INCHES NOMINAL |
| THREAD SERIES DESIGNATOR | UNF |
| THREAD QUANTITY PER INCH | 28 |
| WIDTH BETWEEN FLATS | 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM |