Easy-to-install nylon anchors with double expansion. Edge-free anchors suitable for pre-mounting and through-mounting. The anchor can be easily inserted for quick installation. The anti-rotation feature prevents it from turning in the drill hole, ensuring high mounting safety. The fischer expansion anchor S is the original and has been a proven classic for decades. The plastic anchor is made from 100% high-quality nylon, making it particularly robust during installation and guaranteeing lasting safety. Since the anchor expands in only two directions, the expansion forces can be directed parallel to the edge of the building material by rotating the anchor. This prevents chipping of the material when fastening close to the edge. Wood or chipboard screws can be used to secure the object. The fischer expansion anchor S is ideal for fastening in concrete and masonry made of solid stone.