| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.500 INCHES |
| THREAD QUANTITY PER INCH | 13 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.250 INCHES NOMINAL |
| MATERIAL | STEEL COMP 1020 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OR |
| ZINC OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TYPE 1 CLASS 3 FED SPEC 1ST TREATMENT RESPONSE OR |
| QQ-Z-325 TYPE 1 CLASS 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL |
| STYLE DESIGNATOR | SQUARE BEND |
| DISTANCE FROM INSIDE CENTER OF BEND TO BOLT END | 3.000 INCHES MINIMUM AND |
| 3.125 INCHES MAXIMUM |
| INSIDE DISTANCE BETWEEN SHANKS | 2.531 INCHES MINIMUM AND |
| 2.562 INCHES MAXIMUM |