| BS1981 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS1981-TABLE 14 5/16 UNC X 3/4 | K7766 | BRITISH STANDARDS INSTITUTION |
| DEFSTAN53-43 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| GA17643 | U1269 | MINISTRY OF DEFENCE - DEFENCE LOGIST S ORGANISATION DLO |
| GA17832 | U1269 | MINISTRY OF DEFENCE - DEFENCE LOGIST S ORGANISATION DLO |
| GA42021 | U1269 | MINISTRY OF DEFENCE - DEFENCE LOGIST S ORGANISATION DLO |