| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| THREAD QUANTITY PER INCH | 18 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.250 INCHES MINIMUM |
| MATERIAL | STEEL COMP 1015 OR |
| STEEL COMP 1016 OR |
| STEEL COMP 1017 OR |
| STEEL COMP 1018 OR |
| STEEL COMP 1019 OR |
| STEEL COMP 1020 OR |
| STEEL COMP 1021 OR |
| STEEL COMP 1022 OR |
| STEEL COMP 1023 OR |
| STEEL COMP 1524 OR |
| STEEL COMP 1025 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AISI ASSN STD ALL MATERIAL RESPONSES OVERALL |
| SURFACE TREATMENT | PHOSPHATE MANGANESE OR |
| PHOSPHATE ZINC OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | DOD-P-16232 TY M CL 1 MIL SPEC 1ST TREATMENT RESPONSE OR |
| TT-C-490 TY 1 FED SPEC 2ND TREATMENT RESPONSE OVERALL |
| STYLE DESIGNATOR | ROUND BEND |
| DISTANCE FROM INSIDE CENTER OF BEND TO BOLT END | 4.875 INCHES NOMINAL |
| INSIDE DISTANCE BETWEEN SHANKS | 3.250 INCHES NOMINAL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |