Review on Sumnacon 2 Pcs Door Flush Bolts - 6 Inch Concealed Security Locks for French, Composite, Wood, Double, Dummy Doors - Brush Stainless Steel Finish by Bryan Turner

I have 2 pairs of 10-14 year old french doors in the back of a house I just bought. The cheap friction based plastic guides cracked/failed and otherwise looked like they were on the last legs from years of harsh Florida sun and the pins were rusting from the salty air. These stainless steel assemblies were actually direct replacement parts, although installed differently than the originals. The originals, still intact, had to be removed so that they could slide out, otherwise they would remain on the floor. They come from the side and can be installed with the door installed. The blocks were slightly thicker and slightly higher than the door frame. A bit of sanding/fitting was needed on the narrower doors. The other set was fine. I had to drill larger holes for the pins as they are larger in diameter. Once installed they look great, work even better and I was so happy that their dimensions are near perfect in so many ways. 2mm less and I wouldn't have a single problem. Highly recommended.