10/20Pcs Self Drilling Anchors Screws Self-Tapping Expansion Screw Drywall Anchor Kits Suitable for Gypsum Board Plasterboard Features: HIGH QUALITY ----- These Drywall Self-Drilling Anchors are made of carbon steel and plated with yellow zinc for maximum durability. The split in the ribbed anchors expand on two opposing sides as you tighten the screw, increasing holding power. continuous folding, toughness and impact resistance. No Drill Or Holes in Wall ------ No hole or drilling required. Can easily remove screw & item leaving anchor in wall for reuse and no hole left in the wall after use. The expansion is more complete, the screw in design, the design is more reasonable and simple. Heavy Duty ------ Deep thread design provides strong engagement in 1/4", 3/8", 1/2" or 5/8" gypsum wallboard, Hangs up to 66 lbs. Heavy duty Self-Drilling Anchors for TV, Bike, Shelf Straps, Cabinet & Decoration Fixing Curtains, Calligraphy, Wall Cabinets. WITH SCREWS --- With high quality screws, high hardness, thread sharp, not easy to deformation, can make the expansion pipe fully open, high stability. Specifications: Product name:Self Drilling Anchors Screws Material: Carbon Steel, Zinc plated QTY: 10Pcs/20Pcs Material: Steel Suit for: Sand-lime stone, Aerated concrete, Plasterboard, gypsum block Fix for: Lamps, picture frames, photo frame Instructionn: 1. Drilling holes on the wall first, the depth and diameter of punching must correspond to the size of the product. 2, The anchors is knocked into the wall with a hammer. 3, Anchors aligns the holes to ensure that it can match the size of Wall anchors. 4, Insert the screw and twist clockwise. 5, Make sure that the screws are aligned with the Hallow Wall anchors. Package Included: 1pack* Drywall Self-Drilling(10pcs/20pcs optional)