| FASTENERS | ASH & LACY BUILDING SYSTEMS |
| CORDEN GROUP LTD |
| FLAG SOPREMA UK Ltd |
| GANG-NAIL SYSTEMS LIMITED |
| HALFEN LTD |
| LINDAB LTD |
| FASTENERS AGREMENT CERTIFICATE HOLDERS | GANG-NAIL SYSTEMS LIMITED |
| FASTENERS Carbon Steel | ASH & LACY BUILDING SYSTEMS |
| FASTENERS Colour Headed | ASH & LACY BUILDING SYSTEMS |
| LINDAB LTD |
| FASTENERS Fibre Cement Sheets | ASH & LACY BUILDING SYSTEMS |
| CEMBRIT LTD |
| FASTENERS Halter | ASH & LACY BUILDING SYSTEMS |
| FASTENERS Liner | ASH & LACY BUILDING SYSTEMS |
| FASTENERS Metal Plate Timber Fasteners | GANG-NAIL SYSTEMS LIMITED |
| FASTENERS Stainless Steel | ASH & LACY BUILDING SYSTEMS |
| HALFEN LTD |
| LINDAB LTD |
| FASTENERS Stitching | ASH & LACY BUILDING SYSTEMS |
| FASTENERS Timber Purlins | ASH & LACY BUILDING SYSTEMS |
| GANG-NAIL SYSTEMS LIMITED |
