The Cavity Fixings category is organized into three subcategories: Accessories, Metal Cavity Fixing HM, and Plasterboard Fixing GK. It includes items such as FISCHER Metal Cavity Fixing HM models HM 4 × 32 S (3‑13 Panel), HM 5 × 37 S (6‑15 Panel), and HM 6 × 52 S (7‑21 Panel), each supplied with a metric screw.