The Apolo MEA multi-purpose plug MZK with collar has proved its talent a million times and is suitable for almost every building material. 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. The plug collar inhibits slipping into the drill hole. Also the plug is compatible with many types and sizes of screws. The multi-purpose plug MZK consists of high quality polyethylene which guarantees long lasting elasticity and reliable knotting behaviour.