Angled sliding nut, without cylinder head screw, for fastening in C-series rail with 11 mm slot width, GSM... can be used at any point in the profile. for series rail: 2910 Dimensions (approx. dimensions) W x tx L: 9.4 x 1.75 x 18 mm Thread: M 4 Material: steel, galvanized according to DIN EN ISO 2081, blue passivated