Hex Socket Insert Nuts with Internal Threads for Wood Furniture - Zinc Plated Carbon Steel Screw-in Nuts (M6×13mm) - 20pcs

design--There are external thread and hex socket drive in the Screw-in insert nuts and They are screwed in with a hex key wrench. Advantages--Insert nuts are advantageous over barrel nuts and T-nuts because they can be installed from one side of the workpiece. Durability and rust protection--These insert nuts are made from high quantity zinc plated carbon steel. Mutliple choice--There are screw-in insert nuts in different sizes and take different screw sizes that you can choose for your project. instructions--The pre-drilled hole must be as deep as the length of the insert nut plus any portion of the bolt that may be screwed past the end of the nut in the work piece.