| 131NM47018A ITEM 13 | K3743 | BAE SYSTEMS GLOBAL COMBAT SYSTEMS LIMITED |
| BS4168 PART 8-M4X16 | K7766 | BRITISH STANDARDS INSTITUTION |
| ISO10642-M4X16-12.9 | I9008 | INTERNATIONAL ORGANIZATION FOR STANDARDIZATION (ISO) |
| BS4168:PART 8 | K7766 | BRITISH STANDARDS INSTITUTION |
| BSENISO10642 | K7766 | BRITISH STANDARDS INSTITUTION |
| FL1682A ITEM 13 | U1515 | DGS&E TIG IRC |
| NM47018A ITEM 13 | K3743 | BAE SYSTEMS GLOBAL COMBAT SYSTEMS LIMITED |