| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 1.000 INCHES |
| THREAD QUANTITY PER INCH | 8 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 3.250 INCHES NOMINAL |
| MATERIAL | STEEL COMP 4140 OR |
| STEEL COMP 8645 OR |
| STEEL COMP 8740 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTMA304 ASSN STD 1ST MATERIAL RESPONSE OR |
| ASTMA322 ASSN STD 2ND MATERIAL RESPONSE OR |
| ASTMA 331 ASSN STD 3RD MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | PAINT OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | TT-E-529 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| HARDNESS RATING | 28.0 ROCKWELL C MINIMUM AND |
| 36.0 ROCKWELL C MAXIMUM OVERALL |
| STYLE DESIGNATOR | ROUND BEND |
| DISTANCE FROM INSIDE CENTER OF BEND TO BOLT END | 5.930 INCHES NOMINAL |
| INSIDE DISTANCE BETWEEN SHANKS | 3.836 INCHES NOMINAL |