| HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| OVERALL LENGTH | 2.180 INCHES MINIMUM AND 2.220 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6322 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6324 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6280 ASSN STD 2ND MATERIAL RESPONSE OR AMS 6370 ASSN STD 2ND MATERIAL RESPONSE |
| MATERIAL | STEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 4130 |
| NOMINAL THREAD SIZE | 0.500 INCHES NUT THREAD |
| NOMINAL THREAD SIZE | 0.562 INCHES STUD THREAD |
| SHANK DIAMETER | 0.387 INCHES MINIMUM AND 0.391 INCHES MAXIMUM |
| STYLE DESIGNATOR | STEPPED |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND STUD THREAD |
| THREAD CLASS | 3A NUT THREAD |
| THREAD LENGTH | 0.710 INCHES MINIMUM AND 0.770 INCHES MAXIMUM NUT THREAD |
| THREAD LENGTH | 1.098 INCHES MINIMUM AND 1.120 INCHES MAXIMUM STUD THREAD |
| THREAD QUANTITY PER INCH | 12 STUD THREAD |
| THREAD QUANTITY PER INCH | 20 NUT THREAD |
| THREAD PITCH DIAMETERS | +0.5218 TO 0.5228 INCHES STUD THREAD |
| THREAD SERIES DESIGNATOR | UNF NUT THREAD |
| THREAD SERIES DESIGNATOR | UNS STUD THREAD |