Parameter Information: Material: PP + High Carbon Steel Color: Yellow Tube Outside Diameter: 6mm Inner Diameter of Tube: 4.5mm Screw Diameter: 4mm Suggested Matching Drill Bit: 6mm Product Description: Product Name: Galvanized Screws and Wall Plug Bolts Features: - The expansion tube is made of PP plastic, which is strong in bearing capacity, firm and durable, corrosion resistant, safe and solid. - The cross screws are made of high carbon steel and galvanized, with strong hardness and rust resistance. - Wide range of application, wall hanging mirrors, curtain tracks, decorative paintings, photo frames, towel racks and lamps, such as brick walls, concrete walls, dry walls and wooden walls. Place of Application: - Wall hanging mirrors, curtain tracks, decorative paintings, photo frames, towel racks and lamps. Product Weight : 80 G / 2.82 Ounces Product Dimensions (L*W*H) : 60*45*30 MM / 2.36*1.77*1.18 Inches Package Weight : 85.0 G / 3.00 Ounces Package Dimensions (L*W*H) : 65*45*35 MM / 2.56*1.77*1.38 Inches Retail Packaging: Yes, Plastic Packaging Package Include: 40 x Drywall Anchors 40 x Screws