Hook to press e.g. plastering template against walls/ceilings of buildings consists of two sleeves, one with tension screw and grip, the other with mandrel and grip

摘要

The hook consists of sleeves (2) and a connection element. The first sleeve has an inner thread for a tension screw (5), with a moveable contact pressure plate (6) at the bottom and grip at the top. The second sleeve has an internal bore with a mandrel (9), which has a smaller diameter than the bore and is fastened with its top end in a grip. The mandrel has a full-length self-cutting thread. The bore has internal raised parts, e.g. an internal thread forming a positive mesh with the thread.