| BS4168 PART 1 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS4168 PART 1-M8X20-A2-70 | K7766 | BRITISH STANDARDS INSTITUTION |
| ISO4762-M8X20-A2-70 | I9008 | INTERNATIONAL ORGANIZATION FOR STANDARDIZATION (ISO) |
| M8X20-A2-70 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS4168FLSOMT08.00X020CRESNO | K7766 | BRITISH STANDARDS INSTITUTION |
| BSENISO4762 | K7766 | BRITISH STANDARDS INSTITUTION |
| TORNADO-3399 | U9115 | MINISTRY OF DEFENCE BRITISH STANDARD REFERENCES CONSTRUCTED TO A DEFINITI LEVEL FOR EUROFIGHTER AND TORNADO U NCB TASKING |