Why Choose This:★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 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.★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.★Made from brass material, these threaded inserts offer excellent performance and long-lasting durability.