Description:Featuring good toughness and sharp tip, the self-tapping screws are easy to drill into wood and plastic.Comes with a sturdy storage box, the self tapping screws are organized by size, which are easy to access and provide better protection.Made of high-quality carbon steel material, the self-tapping screws have high hardness and toughness.This kit includes 550pcs self-tapping screws (25mm, 32mm, 38mm, 50mm, 63mm), a screwdriver bit and a storage box. The screws diameter is 8mm, screwdriver bit length is 150mm. and the box is 27.7cm long, 22.5cm wide and 4.8cm high.Screws can be used for woodworking, furniture fitting, DIY, household appliances repair, etc.Item Name: Self-Tapping ScrewsMaterial: Carbon SteelScrews Head Type: PH, SQScrewdriver Bit Specification: SQ2, PH2Features: Strong Toughness, High Hardness, Wide Applications Screws Specifications: 1inch (25mm), 1-1/4inch (32mm), 1-1/2inch (38mm), 2inch (50mm), 2-1/2inch (63mm)Size Details: Box Size: 27.7cm x 22.5cm x 4.8cm/10.91" x 8.86" x 1.89" (Approx.)Screw Length: 25mm/0.98", 32mm/1.26", 38mm/1.5", 50mm/1.97", 63mm/2.48" (Approx.)Screw Diameter: 0.8cm/0.31" (Approx.)Screwdriver Bit Length: 150mm/5.91" (Approx.)Notes:The quantity is about 552pcs, due to manual calculation, the quantity might has 3-5pcs more or less, hope you can understand, thank you.Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:150 x 25mm Self-Tapping Screws150 x 32mm Self-Tapping Screws150 x 38mm Self-Tapping Screws50 x 50mm Self-Tapping Screws50 x 63mm Self-Tapping Screws1 x Screwdriver Bit1 x Storage Box