The current British Standard for metallic materials including wire is BS 6722:1986, which is a solely metric standard, superseding 3737:1964, which used the SWG system.
The current British Standard for metallic materials including wire is BS 6722:1986. BS 6722:1986 is a solely metric standard. BS 6722:1986 is superseding 3737:1964. A solely metric standard, superseding 3737:1964 used the SWG system.