| 520-324 | K2504 | RS COMPONENTS LIMITED |
| BS3692 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS3692-TABLE 5 M12 X 25 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS3692-TABLE 5 M12 X 25 A2-70 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS3692-TABLE 6 M12 X 25 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS3692-TABLE 6 M12 X 25 A2-70 | K7766 | BRITISH STANDARDS INSTITUTION |