| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 3.680 INCHES NOMINAL |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.040 INCHES MINIMUM AND 0.080 INCHES MAXIMUM |
| EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 2 |
| FASTENER LENGTH | 5.030 INCHES MINIMUM AND 5.090 INCHES MAXIMUM |
| FIRST DIAMETER FROM HEAD | 0.558 INCHES MINIMUM AND 0.562 INCHES MAXIMUM |
| HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD HEIGHT | 0.400 INCHES MINIMUM AND 0.420 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| MATERIAL | STEEL COMP 8640 OR STEEL COMP 4140 OR STEEL COMP 8637 OVERALL |
| NOMINAL THREAD DIAMETER | 0.562 INCHES |
| SECOND DIAMETER FROM HEAD | 0.504 INCHES MINIMUM AND 0.506 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.860 INCHES MINIMUM AND 0.875 INCHES MAXIMUM |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.380 INCHES MINIMUM AND 1.440 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 12 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |