| 21818-004-248 | K0361 | THORN E M I ELECTRONICS LTD |
| 857447 | K1278 | REEVES AND CO BIRMINGHAM LTD |
| DEFSTAN 53-56 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| BS2470 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS2470 TABLE 6A-6UNCX0.250 | K7766 | BRITISH STANDARDS INSTITUTION |
| S | U1811 | UNBRAKO A DIVISION OF S P S TECHNOLO IES LTD |