160 Pcs 1/4 "- 20 Thread Inserts for Metal Screws Assortment Hex Socket Drive Nut Inserts - Bolt Fastener Connector for Woodworking Accessories (1/4"-20 x10/15/20/25mm)

1/4"-20 Furniture Screws Threaded Inserts set: 160 pieces 4 Size 1/4"-20 Furniture Screws Comes with 9.0mm White steel twist drill and 6mm Hex Spanner. Features of insert nut: These threaded inserts are inserted into a pre-drilled hole by screwing in, in that case the external protrusions bite into the wood, preventing the nut from either turning or pulling out. Suitable application: Easy to install and with good stability, have a good effect in the furniture combination, suit for all Furniture woods of pine, plywood, fiberboard, etc.. How to use: pre-drill/ drill a suitably sized hole and enter with an Allen tool screw. PS： 1. The hole depth is 1-2mm longer than furniture screw; 2.If that hardness of the wood material is high, enlarged a little bit the screw hole to fit the screw. Specification: Material:high hardness and high quality carbon steel Size: Furniture Screws: 1/4"-20 External Diameter:0.410”(10.5mm) inside Diameter: 0.315”(8mm) Total Length: 10mm/15mm/20mm/25mm Drill: 9.0mm Hex Spanner: 6mm Quantity: 40 x 1/4"-20x10mm 40 x 1/4"-20x15mm 40 x 1/4"-20x20mm 40 x 1/4"-20x25mm 1 x Drill 1 x Hex Spanner 1 x Box Note: Small objects and sharp drill bits, please keep away from children

• 160 pieces 4 size 1/4"-20 furniture screws threaded inserts for wood furniture. Comes with 9.0 mm white steel twist drill and 6mm hex spanner.
• Collection of 4 sizes 10/15/20/25mm in a sturdy box；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
• Material: High hardness and high quality carbon steel
• Usage: Use the matching bit pre-drill /drill a well-sized hole (depth is 1-2mm longer than furniture screw), then use a proper 6mm internal hex 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, for furniture combinations.