| 7697-1424 | K1488 | BRITISH AEROSPACE PLC NAVAL AND ELECTRONIC SYSTEMS DIVISION |
| 931861-224 | K0268 | RAYTHEON SYSTEMS LIMITED |
| BS1981 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS1981-TABLE 12 4 UNC X 1/2 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS1981TBL12SLTNO4UNCX1/2INSTST | U9115 | MINISTRY OF DEFENCE BRITISH STANDARD REFERENCES CONSTRUCTED TO A DEFINITI LEVEL FOR EUROFIGHTER AND TORNADO U NCB TASKING |
| B1981PANHD4-40UNC1-21NSS | U9115 | MINISTRY OF DEFENCE BRITISH STANDARD REFERENCES CONSTRUCTED TO A DEFINITI LEVEL FOR EUROFIGHTER AND TORNADO U NCB TASKING |