The multi-purpose plug MZK 6-41 has proved its talent a million times and is suitable for almost every building material. PZ chipboard screw SPS 4,5x50 included!With the 4-sided expansion in solid building materials and the knotting in perforated bricks or board materials the plug always provides a secure fixing with high pull out loads. Consisting of high quality polyethylene the MZK guarantees long lasting elasticity and reliable knotting behaviour. High compatibility- install your plug with a wide range of screw types and sizes while the plug collar inhibits slipping into the drill hole.