Expansion anchor with internal metric thread, knurled sleeve, made of brass. Substrate: concrete, natural stone, solid brick, and in the case of smaller diameters also wood. Advantages - properties: small anchoring depth, resistant to corrosion and high temperatures, convenient installation using screws with metric thread, knurled anchor surface ensures better adhesion to the hole walls and prevents the anchor from rotating during installation, can be used in many types of substrates, smaller anchor sizes - very practical when installing in wooden substrates, can be dismantled and reassembled, expansion occurs by tightening the screw or rod. Examples of applications: fastening of light interior fittings, consoles, cable routes, wooden and metal construction elements.