Review on High-Performance Star Drive Lag Screw for Construction by Jeremy Black

Got these after they lowered the price and it was a real bargain for what I needed. Used them to hang vinyl/plastic blinds around our house after the stupid plastic anchors failed. The 4 inch length was necessary because previous homeowners had placed 1 inch foam under the vinyl siding they installed. Blinds, paneling, and foam board are 2.75" thick, so I figured a 4" wood screw would be perfect for cutting into the original wood paneling. Since our blinds are painted black I stuck the screws into a large piece of cardboard and then applied several coats of spray paint to them. Rehanging our blinds has allowed me to line them up better and now I have no doubt they will stay in place until I or the next owner decides to take them off. which will be easy as they are just solid screws. A word of caution: Beware of wasps and hornets when removing shutters or other trim from your home. I found two nests and luckily was able to spray them with foaming insecticide. Not much fun when you're high up on the stairs where all your neighbors can judge you. Eventually I realize it was overkill for the blinds but they gave the big knob look my wife liked and I ended up with a whole host of extras that will be used for more appropriate building projects in the future.