Hammer head screw with hexagon nut and washer, can be used at any point in the profile. Use for: anchor channels 2970, 2971, 2972, 2975 and 2980 with 16 mm slot width Dimensions (approx. dimensions) Head length: 31 mm Head width: 15.5 mm Head height: 6 mm Thread: M 10 Length L: 40 mm Strength class: 4.6 Material: steel, galvanized according to DIN EN ISO 4042, blue passivated