1.Package Included:100Pcs #8 x 1/2 inch, 85Pcs #8 x 3/4 inch, 50Pcs #8 x 1 inch, 80Pcs #10 x 1/2 inch, 50Pcs #10 x 3/4 inch, 45Pcs #10 x 1 inch, 40Pcs #12 x 3/4 inch, 20Pcs #12 x 1-1/2 inch, 10Pcs #12 x 2 inch, 10Pcs #14 x 3/4 inch, 10Pcs #14 x 1-1/2 inch, total 500Pcs self drilling screws for metal, with 3pcs hex socket(7mm, 8mm, 10mm) 2.Good holding power: Hexagon washer head self-drilling screws suitable for non-metal or soft metal, no mounting holes, directly screwed into the product with hexagon washer head self-drilling screws without nuts to fit, and it is suitable for harsh environments such as high temperature, cold weather and high humidity areas, it has perfect strength and good corrosion resistance, it is able to let you reduce the time and Money to specialize in maintenance of a good partner 3.Packing quantity: We check all the hexagonal washer head self-drilling screws, you will not receive insufficient quantity after purchase, and we will give you an extra socket bit adapter for each order of hexagonal washer head self-drilling screws to meet your needs when using these screws