Mesh cable tray retaining bracket, for direct ceiling fastening of ceiling supports using nail anchors NA 6X.. or push-through anchors DAM 6X... For use for suspended ceilings with fire protection requirements (model pipe system guideline MLAR 2/2015) please note additional regulations! For use in functional maintenance please note additional regulations! for ceiling supports: DT 50. ... DV Dimensions (approx. dimensions) L x W: 30 x 20 mm Fastening hole: Ø 7 mm Material: Steel, galvanized in accordance with DIN EN ISO 2081, blue passivated