Check the listing for details. 50Pcs Threaded Inserts, M6-1x15 Headless Hex Socket Drive Nut Inserts. Condition: New. Listed at 16.51 USD. Description:1. Material: Our thread inserts are made of zinc alloy, with fine workmanship, strong wear resistance, corrosion resistance, high strength, not easy to rust, and long service life.2. Design: The headless hexagon socket has a simple design, a smooth connection surface, and a beautiful appearance; the flush design allows the insert to be installed below the surface, which prevents the two connection surfaces from being completely flush; the connection is firm and not easy to loosen, providing a stable and reliable connection effect.3. Easy To Use: Use the matching drill bit to drill a hole of the right size, the depth is 1-2 mm longer than the furniture screw, and then use the matching drive tool to screw it in.4. Wide Application: The nut-threaded inserts can be used to connect and fix various parts.