NEF Machine Screw Assortment, Phillips Round Head Screws, 375 Pieces, Includes Plastic Organizer Phillips Round Head Machine Screw Assortment - 375 Pieces Sizes: #8, 10, 12 Lengths: 1/2, 3/4, 1 inch Fasteners included: Round Machine Screws, Flat Washers, and Hex Nuts See second image for detailed quantity and size information