2024 50PCS Round Head Drill Screw Non Slip Carbon Steel Galvanized Self Drilling Screws 4.2x16mm Cross

1、CARBON STEEL: These screws are made of carbon steel material which has high hardness and good toughness and is not easy to deform or wear. 2、RUSTPROOF SURFACE: Galvanized treatment provides excellent corrosion resistant shell has good rust resistance and greatly extends the life of the screw. 3、CROSS GROOVE: These self drilling screws have standard cross groove for even force and no slippage which is easy and quick to tighten. 4、50PCS IN 1 SET: Including 50pcs round head drill screws the specification is 4.2 x 16mm with sufficient quantity which are easy to use and replace. 5、WIDE APPLICATION: Commonly used in home or industrial such as furniture installation application repair or fastening of machine parts etc.