SD had blinds that were in bad shape so we ordered new ones from Casita
. I don't remember just why but I made new L brackets from aluminum angle that is available at Lowes or Home Depot or other hardware stores. Another thing I don't recall is if the blinds came with the stretchy straps that go on a screw at the bottom of the window frame to hold the blinds against the window. One strap at each end of the blinds. Stretch strap material can be found in a fabric store. As for the screws, get a bit driver kit that has all kinds of bits to fit various type screw heads. I have one I got at Sears, Harbor Freight should have them, also other hardware stores. Mine is a 6 x 6 inch plastic box with dozens of bits.