| HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM |
| OVERALL LENGTH | 3.010 INCHES MINIMUM AND 3.030 INCHES MAXIMUM |
| MATERIAL | STEEL COMP E4340 OR STEEL COMP 4340 |
| NOMINAL THREAD SIZE | 0.500 INCHES NUT THREAD |
| SHANK DIAMETER | 0.461 INCHES MINIMUM AND 0.471 INCHES MAXIMUM |
| STYLE DESIGNATOR | STEPPED |
| SURFACE FINISH | 32.0 MICROINCHES NUT THD |
| SURFACE FINISH | 32.0 MICROINCHES STUD THD |
| SURFACE FINISH | 63.0 MICROINCHES SHANK |
| THREAD CLASS | 3A NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND STUD THREAD |
| THREAD LENGTH | 0.775 INCHES MINIMUM AND 0.875 INCHES MAXIMUM NUT THREAD |
| THREAD LENGTH | 0.850 INCHES MINIMUM AND 1.020 INCHES MAXIMUM STUD THREAD |
| THREAD QUANTITY PER INCH | 20 NUT THREAD |
| THREAD SERIES DESIGNATOR | UNF NUT THREAD |
| THREAD PITCH DIAMETERS | +0.5139 TO 0.5154 INCHES STUD THREAD |