| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 12.830 INCHES NOMINAL FIRST HOLE |
| FASTENER LENGTH | 13.130 INCHES NOMINAL |
| HEAD DIAMETER | 3.250 INCHES NOMINAL |
| HEAD HEIGHT | 0.250 INCHES NOMINAL |
| HEAD STYLE | ROUND W/WRENCH FLATS CHAMFERED |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6407 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| PROPRIETARY CHARACTERISTICS | PACS |
| MINIMUM TENSILE STRENGTH | 220000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 2.438 INCHES |
| SHANK UNTHREADED HOLE DIAMETER | 0.203 INCHES MINIMUM FIRST HOLE AND 0.213 INCHES MAXIMUM FIRST HOLE |
| WIDTH BETWEEN FLATS | 3.000 INCHES NOMINAL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.170 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 16 |
| THREAD SERIES DESIGNATOR | UN |