High Quality: The plasterboard fixing screw is made of high-quality galvanized carbon steel material, with high hardness and strong pressure resistance. Compared with plastic screw, it is not easy to age, which is more sturdy and durable. Package: 45 drywall fixing screws,45 drywall plugs. Design: The drywall expansion screw is designed in a flat shape with serrations on both sides, which will not cause damage to the gypsum board during installation. Besides, such a design is able to increase more support forces. Easy to Use: The drywall expansion screw does not need to be drilled first. Just hammer it vertically into the wall and tighten the screw. Uses: It is suitable for gypsum board, fiberboard, thermal insulation layer, fixed curtains on hollow boards, murals, partitions, electrical boxes and other items. Name: Gypsum Board Expansion Screws and Expansion Plugs Material: Carbon Steel Quantity: 45 Screws, 45 Plugs