[Sizes] Internal thread size: M8, nut external diameter: 13mm, length: 30mm, applicable drill size: 10-11mm.[Material] Made of carbon steel, color galvanized surface treatment, high hardness, and good wear resistance, standard inner hexagon socket, smooth.[Application] Suitable for connection and fastening of various objects, often used in furniture cabinets, wardrobes, and connecting plates. Good effect on furniture combination.[Advantage] Inner hex head with flange, evenly stressed on the inner and outer teeth, and the structure are more stable. The flange has a positioning function and is installed on the surface of the connecting surface.[Installation] Make a hole smaller than the outer diameter of 0.2-0.5mm, and lock the nut with a tool. The mounting hole should not be larger than the outer diameter of the thread. When the nut is locked, some wood glue can be applied to the outer teeth to make the fastening effect good.Description:1.Made of carbon steel, color galvanized surface treatment, high hardness, and good wear resistance, standard inner hexagon socket, smooth. 2.Suitable for connection and fastening of various objects, often used in furniture cabinets, wardrobes, and connecting plates. Good effect on furniture combination.3.Inner hex head with flange, evenly stressed on the inner and outer teeth, and the structure are more stable. The flange has a positioning function and is installed on the surface of the connecting surface.4.Make a hole smaller than the outer diameter of 0.2-0.5mm, and lock the nut with a tool. The mounting hole should not be larger than the outer diameter of the thread. When the nut is locked, some wood glue can be applied to the outer teeth to make the fastening effect good.Specification:Product Name: Threaded InsertMaterial: Carbon SteelFinish: Zinc PlatedHead Type: Hex Socket HeadInternal Thread Size: M8Total Height: 30mm / 1.18"External Thread Diameter: 13mm / 0.51"Head Diameter: 14mm/0.55"Hex Socket Width:8mm/0.31"Main Color: Bronze ToneWeight: 344gPackage Content:30pcs x Threaded Insert