Angled sliding nut, with cylinder head screw M 4X8 according to DIN EN ISO 1207, for fastening in C-series rail model 2910 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