General description A cavity fixing that is ideal for overhead installations. The wings spread the load over a wider area, making them more suited for heavier loads. Please allow 30mm cavity depth for the wings to open. Technical specifications Thread Ø: M5 Screw Length: 50mm Wall & Fixture Thickness: 20mm Min. Cavity Depth: 30mm Pack Type: Box Pack Quantity: 100 Finish: Zinc Recess Type: Combi Head Head Type: Pan Thread Type: Metric Material: Carbon Steel Substrates: Plasterboard, Wood Panel, Block