Description: These steel thread inserts can effectively improve screw connection and reliability. Used in all kinds of low strength materials, thread inserts can greatly improve the wear resistance of screw connection and avoid thread damage. Features: These self-tapping thread inserts can be installed directly and do not need to be tapped on a thread first. They are used in low-strength materials such as aluminum, magnesium, can avoid thread damage and get good connection performance to improve connection strength and improve connection condition. For parts that need to be removed frequently, the service life and wear resistance of the thread can be significantly improved. It can prevent screws from loosening, especially for products that require high insurance coverage. Simply insert a thread insert into a damaged screw hole for maintenance. The screw hole can be used as usual to avoid loss of the workpiece. Specifications: Material: SUS303 stainless steel Female thread size: M8 (diameter) x 1.25 (pitch) Length: 15mm Male 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: 18mm Quantity: 20pcs Weight: 104g (approx) Package includes: 20 x thread inserts