T-connector, for connecting T-shaped tapered C-anchor rails with 40 mm width to anchor rails with 30 mm width, please order screws and sliding nuts separately. for anchor rails with 40 mm width: 2986 2988 on anchor rails with 30 mm width: 2970 2971 2972 Material: Steel, galvanized according to DIN EN ISO 2081, thick-layer passivated