| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.5000 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.782 INCHES NOMINAL |
| FASTENER LENGTH | 1.084 INCHES MINIMUM AND |
| 1.125 INCHES MAXIMUM |
| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| MINIMUM YIELD STRENGTH | 14190 POUNDS PER SQUARE INCH |
| HEAD STYLE | HEXAGON |
| HEAD HEIGHT | 0.265 INCHES MINIMUM AND |
| 0.297 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.740 INCHES MINIMUM AND |
| 0.752 INCHES MAXIMUM |
| GRIP LENGTH | 0.296 INCHES MINIMUM AND |
| 0.328 INCHES MAXIMUM |
| GRIP DIAMETER | 0.4986 INCHES MINIMUM AND |
| 0.4991 INCHES MAXIMUM |
| SPECIAL FEATURES | SINGLE DRILLED THRU HOLE IN THE HEAD WITH 0.070 INCH DIAMETER |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT-MACHINE, CLOSE TOLERANCE, AIRCRAFT |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 88044 |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | AN178CH10A |