Specification Brand : Walfront BulletPoint1 : Scope of application - Apply to low-strength engineering materials such as aluminum alloy, zinc alloy, copper, plastic, etc., which can significantly improve thread strength. Commonly used in hydraulic machinery, welding equipment, auto parts, power machinery and furniture and other fields. BulletPoint2 : Optional Sizes - Thread Repair Kits are available in 3 different sizes, M8 x 1.25 x 1D, M8 x 1.25 x1.5D, M8 x 1.25 x 2.5D. Example: M3 x 0.5 x 1.5D, it means that after the screw group is completed, the internal thread is M3, the pitch is 0.5, and the length is 1.5D (the length is 1.5 times the diameter, that is, 1.5 x 3=4.5mm), the length here refers to installed length. BulletPoint3 : Anti-loosening inserts - locking wire screw sleeves can lock the screws into the threaded holes, so that the screws will not loosen when subjected to shock and vibration, which is better than ordinary locking devices BulletPoint4 : Wire Thread Inserts - Also known as Threaded Boots, Stainless Steel Threaded Sleeves, Wire Sleeves and Brackets. It is a new type of internal thread fastener made of high-strength, high-precision -shaped steel wire; BulletPoint5 : High-quality 304 stainless steel - 304 stainless steel has good and is not easy to break when repairing threaded holes. The thread size is standard, the thread is clear, and the thread slipping repair is more accurate. Color : M8 X 1.25 X 1.5d DriveSystem : External Hex ExteriorFinish : Stainless Steel FinishType : Finish GradeRating : Industrial ItemName : 50Pcs Helical Threaded Inserts M8x1.25 Spiral Circle Repair Insert Reducer Nut Stainless Steel Threaded Expand Socket Set(M8 x 1.25 x 1.5D) ItemPackageDimensions_Height : 14.2 centimeters ItemPackageDimensions_Length : 2 centimeters ItemPackageDimensions_Width : 10.8 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : hardware-nut-inserts Manufacturer : Walfront Material : Stainless Steel MeasurementSystem1 : Metric MeasurementSystem2 : Inch MetalType : Stainless Steel MetalType1 : Zinc MetalType2 : Bronze ModelNumber : BM6500N2411IG NumberOfItems : 1 NumberOfPieces : 50 PartNumber : Walfrontgdibwacv4879-12 ProductDescription : Specification: Item Type: Thread Repair Inserts Material: SUS304 Model: M8 x 1.25 Thread Specification: M8 x 1.25mm Outside Diameter Before Installation: Approx. 9.8 ~ 10.1mm / 0.39 ~ 0.4in Drilling Drill Bit Diameter for Installation: Approx. 8.3mm / 0.3in 1D 1.5D 2.5D Length After Installation: Approx. 8mm / 0.3in 12mm / 0.5in 20mm / 0.8in