Check the listing for details. 100 Pcs M3 Threaded Inserts 3D Printing Knurled Nuts Heat-Set Inserts Brass. Condition: New. Listed at 18.72 USD. Product Details1.The knurled nuts on these inserts provide a secure grip when installed in plastic or other materials. This ensures a stable and reliable connection, even under challenging conditions.2.Made from brass material, these threaded inserts offer excellent performance and long-lasting durability. The female threads ensure compatibility with a wide range of screws and bolts, allowing for easy installation.3.Thread Size: M3 x 0.5mm; Dimension: 5.7mm x 4.6mm/ 0.22 inch x 0.18 inch (L*D); Packing List: 100Pcs x Threaded Inserts4.These brass heat-set inserts are designed to provide a strong and durable threaded connection. These threaded inserts are suitable for a variety of applications, including industrial projects.