Floor anchors for securely anchoring railing tubes in the subfloor. With a knurled surface for driving into the tube or for clamping via side clamping screws—each mounted on a base plate that is screwed to the floor. For round tubing Ø 33.7 / 42.4 / 48.3 mm and square tubing 30 / 40 / 50 mm, polished to K240 finish, in V2A and V4A. Round plate Ø 100 mm with Chamfer or square plate.