Specification Brand : Culnflun BulletPoint1 : [HIGH-STRENGTH THREAD INSERTS] These inserts create resistant female threads in aluminum and other materials for increased strength and wear drag BulletPoint2 : [COST-EFFECTIVE REPAIR] Easily repair damaged or incorrect threaded holes with these thread inserts without expensive replacements BulletPoint3 : [CONVENIENT THREAD CONVERSION] Convert between metric and inch thread holes quickly and efficiently with these versatile inserts BulletPoint4 : [PREMIUM QUALITY MATERIAL] Made of high-strength diamond-shaped steel wire for precise and accurate threading, enhancing thread strength and wear drag BulletPoint5 : [VERSATILE APPLICATION] Ideal for use on low-strength engineering materials like aluminum, zinc alloy, copper, and plastics to greatly improve thread durability Color : Blue DriveSystem : Slotted ExteriorFinish : Silver ExternallyAssignedProductIdentifier : 9182438288197 ExternallyAssignedProductIdentifier1 : 0788384122593 ExternallyAssignedProductIdentifier2 : 788384122593 FinishType : Stainless Steel GpsrSafetyAttestation : 1 GradeRating : industrial ItemName : Culnflun Thread Inserts, 10Pcs Male Female Repair Tool, Stainless Steel Wire Fastener M18x2.5 for Aluminum Alloy Engineering Materials (1D) ItemPackageDimensions_Height : 2 centimeters ItemPackageDimensions_Length : 7 centimeters ItemPackageDimensions_Width : 6 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : thread-locking-inserts Manufacturer : Culnflun Material : steel MeasurementSystem1 : metric MeasurementSystem2 : inch MetalType : Stainless Steel MetalType1 : Stainless Steel MetalType2 : Copper MetalType3 : Alloy Steel ModelNumber : Culnflunygqf5wm6xr-11 NumberOfItems : 1 NumberOfPieces : 50 PartNumber : Culnflunygqf5wm6xr-11 PowerSourceType : ac ProductDescription : Item Type: Thread Inserts Material: SUS304 Model: M18x2.5 Thread Specification: M18x2.5 (mm) Outside Diameter Before Installation: Approx. 21.4 ~ 22mm / 0.8 ~ 0.9in Diameter of Drilling Drill Bit for Installation: Approx. 18.6mm / 0.7in1D/1.5D/2D/2.5D/3D: Length After Installation: Approx. 18mm / 0.7in 27mm / 1.1in 36mm / 1.4in 45mm / 1.8in 54mm / 2.1in Number of Turns Before Installation: 5.6/9/12.3/15.7/19 Specification Description: For Example: M3x0.5X1.5D, which means that after the screw set is completed, the female thread is M3, the pitch is 0.5, and the length is 1.5D (length refers to 1.5 times the diameter, that is, 1.5x3=4.5mm ), the length here refers to the length after installation. How to Use: 1. Drilling Use the drill bit of the size listed in the parameter table of the wire thread insert to drill the hole. Be careful not to drill the hole into a cone shape. The chips generated by the drill hole must be blown out with compressed air. After drilling, the counterbore should not exceed the depth of 0.4 pitch. Too large counterbore is not conducive to the screwing of the wire thread insert. 2. Tapping Use special taps for wire thread inserts to tap. The depth of the tapping must exceed the installation length of the thread inserts. After tapping, use a compressed air spray gun to blow out the debris. When the thread accuracy is high, check the tapped bottom hole with a special bottom hole plug gauge for wire thread inserts. 3. Installation Put the wire screw sleeve into the installation wrench (figure 5 on the right), insert the wire screw sleeve installation tail handle into the guide rod groove of the installation wrench, and turn the handle of the installation wrench to screw the wire screw sleeve into the screw hole.