| DIAMETER OF RECESSED PORTION OF SHANK | 0.396 INCHES NOMINAL |
| HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM |
| LENGTH OF RECESSED PORTION OF SHANK | 4.438 INCHES NOMINAL |
| OVERALL LENGTH | 6.562 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMSSAE ASSN STD ALL MATERIAL RESPONSES |
| MATERIAL | STEEL COMP 3140 OR STEEL COMP 8640 |
| NOMINAL THREAD SIZE | 0.500 INCHES NUT THREAD |
| NOMINAL THREAD SIZE | 0.500 INCHES STUD THREAD |
| STYLE DESIGNATOR | RECESSED |
| THREAD CLASS | 3A NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND STUD THREAD |
| THREAD LENGTH | 1.000 INCHES NOMINAL STUD THREAD |
| THREAD LENGTH | 0.875 INCHES NOMINAL NUT THREAD |
| THREAD QUANTITY PER INCH | 13 STUD THREAD |
| THREAD QUANTITY PER INCH | 20 NUT THREAD |
| THREAD PITCH DIAMETERS | +0.4525 TO 0.4555 INCHES STUD THREAD |
| THREAD SERIES DESIGNATOR | UNF NUT THREAD |
| THREAD SERIES DESIGNATOR | UNS STUD THREAD |