Review on 🔒 Enhance Your Security with Defender Security U 10306 4-Inch Surface Bolt, Satin Nickel Finish by Ted Higdem

if you mark the spot with a pencil, pre-drill the holes with a 1/16" drill bit, don't use a drill bit to tighten the screws, and have 2 small chisels to match it was easy to install and looks nice they work just as well how to have both plates for inside or outside mounting of a frame if you don't pre drill the holes or use a bit, that's too big or try using a drill to tighten the screws you will increase your chances of screwing it in. I've seen some reviews saying the screws were too small Right I bought two I also have a third exterior french door I needed it but bought it from Revain for $38 it's heavy duty.