When your parts are cut and it's time to put it all together, this grab-and-go kit provides the screws you need in one convenient package. It includes a huge assortment of 788 screws with a low-friction lube finish for easy driving. Both flat head and washer head screws are included. The flat head screws feature nibs under the head that let the screw countersink itself. The washer head screws have a wide, flat bearing surface that helps prevent pull-through on particleboard, and pulls stubborn joints together. All have a Square X head that accepts both Square #2 bits for a positive hold and Phillips #2 bits for convenience and availability. Everything comes packed in a neatly divided case with clearly labeled compartments.