| BS450 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS450-TABLE 2 3/16 BSW X 1/2 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS450BSW3-16X1-2T2F2S | U9115 | MINISTRY OF DEFENCE BRITISH STANDARD REFERENCES CONSTRUCTED TO A DEFINITI LEVEL FOR EUROFIGHTER AND TORNADO U NCB TASKING |
| BS450BSW3/16X1/2T2F2S | U9115 | MINISTRY OF DEFENCE BRITISH STANDARD REFERENCES CONSTRUCTED TO A DEFINITI LEVEL FOR EUROFIGHTER AND TORNADO U NCB TASKING |