General description These ribbed metal expansion anchors are designed for fast and secure fixing in various materials including concrete, aerated concrete, plasterboard, gypsum fiber, solid and hollow bricks. Durable and reliable, they ensure convenient, stable, and solid installation, making them an ideal choice for renovation, installation, furnishing, development, and decoration projects. Technical specifications Total length: 38 mm Internal diameter: M8 Unit weight: 6 g Material: Steel Usage These anchors are suitable for a variety of applications including: Concrete Brick with vertical perforations Hollow lightweight concrete block Hollow and solid sand-lime brick Natural stone with dense structure Aerated concrete Solid lightweight concrete block Gypsum tile Other information The external serration expands into the base material, guaranteeing high strength. By inserting the screw, the anchor expands, and the external metal serrations are firmly fixed in the base material. The body provides a good hold and ensures a solid anchor, approved over time. Note that in aerated concrete of low strength class, pre-drilling is not necessary. Anchors of dimensions M6x32 and M8x38 can be driven directly without pre-drilling.