Check the listing for details. 50pcs M4 Threaded Inserts Metric Knurled Nuts Brass Heat-Set Inserts. Condition: New. Listed at 16.35 USD. DescriptionEnhance the strength and reliability of your plastic and 3D printed components with our Threaded Inserts. 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. Whether you are working on robotics, electronics, or any other project that requires a reliable threaded connection, these inserts will meet your needs.SpecificationMaterial: BrassThread Size: M4 x 0.7mmDimension: 8.1mm x 6.3mm/ 0.32 inch x 0.25 inch (L*D)Packing List: 50Pcs x Threaded InsertsFeatures1. 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.2.