Features [Easy Installation] These self-tapping threaded plugins can be installed directly without having to tap the thread first. [Flexibility] This thread repair insert is used in low-strength materials, such as aluminum and magnesium to prevent damage to the thread and obtain good connection performance to improve the connection strength and improve the connection conditions. [High Efficiency] It is used for parts that need to be disassembled frequently, which can greatly improve the service life and wear resistance of thread. [Very practical] This spiral insert can prevent screws from loosening, especially suitable for products with high insurance coefficient. [Workpiece Maintenance] This self-tapping screw insert is easy to maintain, insert the thread into a damaged screw hole, and then the screw hole can be used normally to prevent loss of the workpiece. Description: These steel wire inserts can effectively Improve screw connection, greatly improving reliability. Used in all kinds of low-strength materials, wire inserts can largely improve the wear resistance of screw connection, and avoid wire damage. Specifications: Material: stainless steel SUS303 Internal thread size: M8 (diameter) x 1.25 (pitch) Length: 15 mm External thread size: M12 (diameter) x 1.5 (pitch) Drill diameter: 10.6~10.8mm (plastic); 11~11.2mm (aluminum alloy); 11.2~11.4mm (cast iron) Min. Drilling depth: 18 mm Quantity: 20pcs Weight: 104g (approx) Package includes: 20 x threaded inserts Package List