| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 2.598 INCHES MINIMUM FIRST HOLE AND 2.602 INCHES MAXIMUM FIRST HOLE |
| FASTENER LENGTH | 2.766 INCHES MINIMUM AND 2.770 INCHES MAXIMUM |
| HEAD HEIGHT | 0.296 INCHES MINIMUM AND 0.328 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | IRON ALLOY 660 OVERALL |
| PROPRIETARY CHARACTERISTICS | PACS |
| MINIMUM TENSILE STRENGTH | 130000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.500 INCHES |
| SHANK UNTHREADED HOLE DIAMETER | 0.106 INCHES MINIMUM FIRST HOLE AND 0.111 INCHES MAXIMUM FIRST HOLE |
| SHOULDER DIAMETER | 0.623 INCHES MINIMUM FIRST SHOULDER |
| SHOULDER LENGTH | 2.316 INCHES MINIMUM FIRST SHOULDER AND 2.320 INCHES MAXIMUM FIRST SHOULDER |
| SHOULDER SHAPE | ROUND FIRST SHOULDER |
| WIDTH BETWEEN FLATS | 0.928 INCHES MINIMUM AND 0.940 INCHES MAXIMUM |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.450 INCHES MINIMUM |
| THREAD QUANTITY PER INCH | 20 |
| THREAD SERIES DESIGNATOR | UNF |