Thanks to its 4-way expansion, the Fischer SX Plus expansion anchor is the specialist for solid building materials such as concrete, limestone sandstone and masonry. The special fixing blades ensure the pre-fixing of the screw, which means you do not need to keep it further in place for overhead applications. This screw fixing allows the user a flexible and comfortable setting process. The flexible edge of the dowel also prevents the dowel from slipping deeper into the hole, ensuring a secure installation. The high-quality nylon material ensures a permanently secure hold in a wide range of solid and perforated building materials.