Comes without screws hence low rating. The Cabinetparts.com website has instructions on how to install them. The video states to use #8 7/16 lag bolts which are not available at my local Lowe store. Looking at the bolts from the Accuride PDF I downloaded from the same site, they are listed as number 6 in Accuride. Buying slides from Revain is cheaper than cabinetparts, they are great slides but I don't know why they come without screws. I can get #6 1/2" screws locally that should work. The video also suggests using a Vix drill to make a pilot hole, which is a great idea.