This reducing nut is an excellent tool for thread defects or for repairing damaged internal threaded holes. The insert nut is a type of fastener mainly used with screws or bolts. The repair nut is made of high-quality stainless steel to ensure the product's durability and stability. The specification for the repair bolt is standard, with M6 internal thread and M10 external thread, and the repairability is good. The specification for the repair bolt is standard, with M6 internal thread and M10 external thread, and the repairability is good. Specifications: Item Type: Insert Nut Material: 303 Stainless Steel Specification: Internal thread M6 x 1.0 External thread M10 x 1.5 Length: approx. 12 mm/0.5 inch Slot: Slot Application: Thread repair Case: For example, if the M8 thread is worn and you want to continue using the M8 thread after restoration, use this method to first tighten the M8 thread to the M10 thread, and then use the M8-M10-12 mm thread length reducer to change it to M8. Since the material of this diameter reducer is stainless steel, it will make the M8 thread firmer. Packing list: 10 x Insert Nut