Prime-Line J 4602 4 Inch Solid Brass Floor Stop with Brushed Chrome Finish - Heavy Duty Door Stopper for Home, Office & Commercial Use - Single Pack

This is a solid metal, heavy duty door stop. I ordered 2 and got 2 different sets of hardware with them (identical package though). One package contained a lag screw setup so that you could screw it straight down into the floor and the other package included a regular bolt setup which would have required a nut from underneath. The one pictured in the item description is the lag screw setup with only 1 hole for a set screw on the top. The second product I received had 3 holes in the flange and was easy to screw down into a wood floor. I had not problems with installation of either. They worked great for stops on out-swinging doors onto a deck where the decking is lower than the finish floor height inside the house. Most other door stops are too short to work in this application.