Threaded rod M 12, including four hexagon nuts and washers. 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 12 Length L: 300 mm Strength class: 4.8 Material: Steel, galvanized according to DIN EN ISO 4042 / DIN EN ISO 2081, blue passivated