Brass Threaded InsertsGeneral Information：[1]Please note that proper installation techniques should be followed to optimal performance. It is recommended to use a soldering iron to heat the insert before inserting it into the desired material.[2]Made from brass material, these threaded inserts offer excellent performance and long-lasting durability. The M2.5 female threads compatibility with a wide range of screws and bolts, allowing for easy installation.[3]The knurled nuts on these inserts provide a secure grip when installed in plastic or other materials. This s a stable and connection, even under challenging conditions.[4]These brass heat-set inserts are designed to provide a strong and durable threaded connection.