Steel expansion sleeve with internal thread, white galvanized. Substrate: non-cracked concrete, class B25 or higher, solid natural stone. Advantages - properties: very quick and easy assembly - all you need is a manual setting tool and a hammer, small embedment depth reduces the time needed for assembly and reduces the cost of work, br />suitable for assembly with screws with metric threads or threaded rods, enables disassembly of the element and possible re-assembly, possibility of embedding the anchor flush with the surface or deeper, anchors sizes up to M12 are perfect for the installation of suspended ceilings. Material: glossy galvanized steel, white zinc plated, min. 5µm. Examples of use: mounting of air-conditioning, ventilation, water supply, heating, sanitary installations, pipelines, cable channels, pipes, ceilings and suspended structures, scaffoldings, grilles, railings, gates, shelves, screens, steel structures, rails, supports, etc.