| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 5.970 INCHES NOMINAL FIRST HOLE |
| CONCENTRIC HOLE DIAMETER | 0.624 INCHES MINIMUM AND 0.631 INCHES MAXIMUM |
| COUNTERBORE DEPTH | 3.480 INCHES NOMINAL |
| COUNTERBORE DIAMETER | 0.748 INCHES MINIMUM AND 0.758 INCHES MAXIMUM |
| FASTENER LENGTH | 6.380 INCHES NOMINAL |
| HEAD HEIGHT | 0.190 INCHES NOMINAL |
| HEAD DIAMETER | 1.250 INCHES NOMINAL |
| HEAD STYLE | ROUND W/WRENCH FLATS CHAMFERED |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6050,F4 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 8630 OVERALL |
| MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.875 INCHES |
| SHANK UNTHREADED HOLE DIAMETER | 0.110 INCHES MINIMUM AND 0.115 INCHES MAXIMUM FIRST HOLE |
| SHOULDER DIAMETER | 0.999 INCHES MINIMUM AND 1.000 INCHES MAXIMUM |
| SHOULDER LENGTH | 5.430 INCHES MINIMUM AND 5.460 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 1.053 INCHES MINIMUM AND 1.066 INCHES MAXIMUM |
| STYLE DESIGNATOR | COUNTERBORE UNTHREADED |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.740 INCHES MINIMUM AND 0.780 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 14 |
| THREAD SERIES DESIGNATOR | UNF |