Hardened steel, galvanized and yellow passivated and Hostaflon coated. Panhead with T-bit (hexalobular socket), sizes 3 mm T10, 3.5 mm T15, 4 and 4.5 mm T20, 5 mm T25. Using SPRINT screws results in significantly shorter screwing times compared to conventional screws. This noticeable advantage is achieved by the gripping tip with the 1st gear, which leads to the 2-start thread. Areas of application: wood, chipboard, plasterboard, plastic dowels.