Homepak is a collection of fasteners for practical use around the home or workplace. This kit contains an assortment of sizes of oval head Phillip's machine screws, nuts, and washers. Machine screws are used with nuts or screwed directly into a threaded receptacle to fasten various components together in machines, tools, etc. Fasten with a screwdriver to reduce risk of over-tightening and protect the screw and fastened material. If nuts are needed, use with nuts of the same finish and threading for proper fit. The length of a machine screw is measured from under the head to the point of the screw.