Kindroufly is a professional company of fasteners. We sell screws, bolts, nuts, washers, rivets, anchors, nails, pins, rods, bars, retaining rings, spacers, standoffs and threaded Inserts. Nut Inserts Detailed Specifications : - Quantity: 16 Pieces - Sizes: 3/8"-16 x 25mm - Material: Blue Zinc Plated Carbon Steel - Fastener Type: Threaded Inserts, Wood Inserts, Nut Inserts - Features: Smooth Surface, High Hardness, Rust Resistance and Oxidation Resistance Why Choose Kindroufly Nut Inserts: 1. All nut inserts are made of blue zinc plated carbon steel, which have high strength, well wear-resistance and great corrosion-resistance, ensure long time using. 2. Our wood insert nuts feature threaded designs, external protrusions bite into the wood, provide superior holding power and prevent the insert nuts from either turning or pulling out in all applications. 3. Kindroufly 3/8"-16 x 25mm blue color threaded inserts, wood inserts, nut inserts assortment kit are perfect for soft woods, plywood and composition board. It is a necessity fastener for furniture repair. Kindroufly Nut Inserts Package Included : 1 pieces Hex Wrench 15 pieces 3/8"-16 x 25mm Threaded Inserts Warm Tips: 1. We suggest drilling a hole with diameter 15 +/- 0.2 mm. 2. If the wood material is with high-hardness, enlarge the screw hole to screw in fit. Note: 1, Warning: small parts, keep away from children under 6 years. 2, If you have any questions, please feel free to contact us at any time. 3, Please check the size carefully before purchasing, thanks for your purchase.