Flat-head screw similar to DIN 603, including toothed flange nut according to DIN EN 1661. For use in functional maintenance or for suspended ceilings with fire protection requirements (model pipe system guideline MLAR 2/2015), please observe additional regulations! Dimensions (approx. dimensions) Thread: M 6 Length L: 12 mm Strength class: 4.8 Material: Steel, galvanized according to DIN EN ISO 4042, blue passivated