| BS1768-TABLE 1 5/16 UNC X 1 | K7766 | BRITISH STANDARDS INSTITUTION |
| S.81119 | K0072 | ROLLS-ROYCE POWER ENGINEERING PLC |
| TX.466188 MARK 9 | K0072 | ROLLS-ROYCE POWER ENGINEERING PLC |
| TX.466188 MK 9 | K0072 | ROLLS-ROYCE POWER ENGINEERING PLC |
| TX.466188/9 | K0072 | ROLLS-ROYCE POWER ENGINEERING PLC |