Threaded Insert Zinc Alloy Wood Screw M6 M8 Threaded Insert ‘Screw Nut À Hexagonal Socket For Wooden Furniture Material: zinc alloy. Quantity : 145 items in total. Safety tips: put glue on the wood in the hole (in the sidewall), insert and turn the nut several times, apply glue to the threads of the nut, then fully tighten the nut so it is flush with the wood. Flat and as dry as possible.< /p>