Product Details:Color: SilverMaterial: Carbon SteelTotal Length: 2" / 50mmDiameter: 1/4" / 6.35mmExpansion Body Length: 1.83"/ 46.5mmPre-Drilling Diameter: 1/4" / 6.35mmPackaging Specifications: 10pcs x Split Drive AnchorsMaterial - Hammer Drive Nail are made of carbon steel with high strength and hardness excellent mechanical properties and high load-bearing capacity. The appearance is electroplated wear-resistant corrosion-resistant bright in appearance and long in service life.Feature - The expansion principle of the drive anchors allows it to expand and be fixed in the drilled hole. The expansion part is in close contact with the wall and the connection effect is stable and long-lasting effectively preventing loosening and falling off.