| BS450 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS450-1958TAB2-2 5-16BSWX2 1-2M- | K0195 | BRITISH STANDARDS INSTITUTION |
| NEN1780A-BSW5/16X2,1/2-CUZN | H1266 | STICHTING NEDERLANDSNORMALISATIE-INSTITUUT |
| BS450-1958TAB2-25-16BSWX2-1-2MS- | K0195 | BRITISH STANDARDS INSTITUTION |
| BS450-1958TAB2-258H | K0195 | BRITISH STANDARDS INSTITUTION |