| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.625 INCHES |
| THREAD QUANTITY PER INCH | 18 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.813 INCHES MINIMUM |
| FASTENER LENGTH | 2.843 INCHES NOMINAL |
| MATERIAL | STEEL COMP 4140 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| HEAD STYLE | TEE NO. 3 |
| HEAD HEIGHT | 0.250 INCHES NOMINAL |
| HEAD LENGTH | 2.062 INCHES NOMINAL |
| WIDTH BETWEEN FLATS | 1.188 INCHES NOMINAL |
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 0.267 INCHES NOMINAL FIRST HOLE |
| SHANK UNTHREADED HOLE DIAMETER | 0.141 INCHES MINIMUM AND |
| 0.151 INCHES MAXIMUM FIRST HOLE |
| SPECIAL FEATURES | UNTHREADED PART OF SHANK 0.748 IN. TO 0.749 IN. DIA |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 43999 |
| DESIGN CONTROL REFERENCE | 265-210414 |