| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.500 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.688 INCHES MINIMUM |
| FASTENER LENGTH | 3.031 INCHES MINIMUM AND |
| 3.156 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 1045 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| HARDNESS RATING | 95.0 ROCKWELL C MINIMUM AND |
| 99.0 ROCKWELL C MAXIMUM OVERALL |
| MINIMUM YIELD STRENGTH | 90000 POUNDS PER SQUARE INCH |
| HEAD STYLE | HEXAGON |
| HEAD HEIGHT | 0.500 INCHES NOMINAL |
| WIDTH BETWEEN FLATS | 0.875 INCHES NOMINAL |
| SHOULDER SHAPE | ROUND FIRST SHOULDER |
| SHOULDER DIAMETER | 0.625 INCHES NOMINAL FIRST SHOULDER |
| SHOULDER LENGTH | 3.078 INCHES NOMINAL FIRST SHOULDER |
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 3.625 INCHES NOMINAL FIRST HOLE |
| SHANK UNTHREADED HOLE DIAMETER | 0.109 INCHES NOMINAL FIRST HOLE |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 02413 |
| DESIGN CONTROL REFERENCE | 800E2717 |