Inside Outside Thread Adapter Screw Nuts Insert Sleeve Converter Nut M2 M3 M4 M5 M6- M12 M20, M12-M20 (2pcs)

Material: Made of high-quality metal material, durable, no rust, corrosion resistance, environmental protection, can be used for a long time Deep Thread Design: The thread is very deep, smooth and burr-free, not easy to deform and slip during rolling. Good fixing force after installation Good Holding Force: It can provide good holding force in different materials to achieve the effect of connection and fastening Easy to Use: high strength, no deformation, not easy to break, not easy to slide during installation, ensure a firm grip Versatile Use: We carry the most commonly used screw sizes. Widely used in professionals, hobbyists, home, office equipment, workstation fixtures, furniture and other home decoration and crafts