80Pcs 1/4"-20x25mm-H Flushed Nut Inserts Wood Threaded Fastener for Furniture

80 pieces 1/4"-20 Flush furniture screws threaded inserts for wood furniture. Comes with 9.0 mm white steel twist drill and matching drive tool | Internal thread insert type: 1/4"-20, it is not a metric nut, the thread inside the nut is different, match this type when selecting accessories | Flush Design permits insert to be installed below surface level. They can keep the two connected surfaces from meeting absolutely flush | Usage: Use the matching bit pre-drill /drill a well-sized hole (depth is 1-2mm longer than furniture screw), then use a matching drive tool to screw in. Tip: If the furniture wood is with high-hardness, please enlarge the screw hole. | Applications:These furniture screws are wear-resistant . Suitable for furniture hardwood/ solid wood and furniture combinations.