Descriptions: These self -tapping thread inserts with self-tapping ability, so help save cost. Large contact surface with finished product, strong tensile strength. It is widely used in automobile industry, rail car industry, ship industry, household appliances, and other industries. Features: These self -tapping thread inserts with self-tapping ability, so help save cost. Large contact surface with finished product, strong tensile strength. It has the ability of strong vibration resistance, which can prevent loose. The self-tapping screw installation does not need to be pre-tapped, it can be directly used by the installation tool to screw it into a specific hole reserved by the parent material. It is widely used in automobile industry, rail car industry, ship industry, household appliances, construction machinery, business machines, electronic products, engineering plastics, advanced composite furniture, aluminum die-casting and other industries. Specifications: Material: Carbon steel ( galvanized ) Size: M8 * M5 *10mm Weight:18g Package Included: 10 x self -tapping thread inserts