| FASTENER LENGTH | 3.995 INCHES MINIMUM AND 4.005 INCHES MAXIMUM |
| GRIP DIAMETER | 0.621 INCHES MINIMUM AND 0.623 INCHES MAXIMUM |
| GRIP LENGTH | 3.245 INCHES MINIMUM AND 3.255 INCHES MAXIMUM |
| HARDNESS RATING | 32.0 ROCKWELL C NOMINAL OVERALL |
| HEAD DIAMETER | 0.853 INCHES MINIMUM AND 0.875 INCHES MAXIMUM |
| HEAD HEIGHT | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| HEAD STYLE | FLAT CHAMFER |
| INTERNAL DRIVE STYLE | HEXAGON |
| MATERIAL | STEEL OVERALL |
| III PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW, SHOULDER |
| PROPRIETARY CHARACTERISTICS | PACS |
| MINIMUM TENSILE STRENGTH | 140000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.500 INCHES |
| SPECIAL FEATURES | MATERIAL ALLOY STEEL |
| WIDTH ACROSS FLATS | 0.312 INCHES NOMINAL |
| SURFACE TREATMENT | OIL OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.750 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 13 |
| THREAD SERIES DESIGNATOR | UNRC |