| HARDNESS RATING | 25.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM |
| OVERALL LENGTH | 4.375 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-1222,TYPE 1,GRADE B7A MIL SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL |
| NOMINAL THREAD SIZE | 0.500 INCHES LOCATION NOT OTHERWISE SPECIFIED |
| SPECIAL TEST FEATURES | NON E |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 2A LOCATION NOT OTHERWISE SPECIFIED |
| THREAD DIRECTION | RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED |
| THREAD SERIES DESIGNATOR | UNF LOCATION NOT OTHERWISE SPECIFIED |
| THREAD QUANTITY PER INCH | 20 LOCATION NOT OTHERWISE SPECIFIED |