Color: 120pcs Threaded Flange Nut Insert Nut for High Precision Hex Flange provides a threaded socket for wood workpieces, much like a gecko. Threaded Inserté Wood insert nuts are screwed into the pre-drilled holes. In this case, the outer protrusions bite into the wood to prevent the nuts from turning or pulling, which is very appropriate for furniture fitting and woodworking. Material: Zinc Alloy< br />Size: M410mm, M510mm, M610mm, M615mm ,M618mm,M620mm, M815mm, M820mm, M825mm Features: The perfect solution to damage wooden furniture! It is very suitable for replacing the screws with screw holes. broken woods. The small nut is solid wood. Suitable for carpenters, mechanics, homeowners to repair cabinets, floors, wooden toys, construction and other cork, fiberglass. Tapered male thread holds it in place and prevents it from being pulled out. due to vibrations. The Threaded Insert Kité includes: 30nut(M410mm) 30nut(M510mm) 25nut(M610mm) 15nut(M615mm) 15nut (M6*18mm)