5/16"-18x15mm Threaded Insert Nuts Hex Socket Drive for Wood Furniture 40pcs - Color Zinc

[Sizes] Internal Thread Size: 5/16"-18; External Thread Diameter: 13mm / 0.51"; Total Height: 15mm / 0.59"; Head Diameter: 14mm / 0.55"; Hex Socket Width: 8mm / 0.31" [Material] Made of carbon steel, color galvanized surface treatment, high hardness, and…