Specification Brand : Fafeicy BulletPoint1 : [Simple Maintenance] Easily repair damaged screw holes by installing a thread insert, ensuring the screw hole can be used normally to avoid workpiece loss. BulletPoint2 : [ & Wear-resistant] Ideal for parts requiring frequent removal, these inserts greatly improve service life and wear-resistance of screw threads. BulletPoint3 : [Easy Installation] These self tapping thread inserts can be installed directly without the need to tap a thread first, saving time and effort for users. BulletPoint4 : [Enhanced Connection Strength] Made for low strength materials like aluminum and , these inserts prevent thread damage and improve connection performance. BulletPoint5 : [Secure & Stable] Prevent screws from getting loose, especially useful for products that require a high coefficient of insurance for added safety. Color : silver ExteriorFinish : Aluminum ExternallyAssignedProductIdentifier : 9088955552219 ExternallyAssignedProductIdentifier1 : 859668006394 ExternallyAssignedProductIdentifier2 : 0859668006394 FinishType : Finish GpsrSafetyAttestation : 1 ItemName : 20pcs Metal Self Tapping Thread Insert M4 x 8mm Set, Improve Connection Strength, Prevent Screw Loosening with Easy Maintenance for Workpiece Loss ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 7 centimeters ItemPackageDimensions_Width : 3 centimeters ItemPackageQuantity : 1 ItemShape : Round ItemTypeKeyword : thread-locking-inserts Manufacturer : Fafeicy Material : Stainless Steel ModelName : Nizuuonenr5zf7p46g-03 ModelNumber : Fafeicyq3ycm8pbha NumberOfItems : 1 NumberOfPieces : 20 PartNumber : Fafeicyq3ycm8pbha ProductDescription : Specifications: Material: Metal Inner Thread Size: M4(diameter) x 0.7(pitch) x 8mm(length) Outer Thread Size: M6.5(diameter) x 0.75(pitch) Drilling Diameter: 5.8~5.9mm(plastic); 6.0~6.1mm(aluminum alloy); 6.1~6.2mm(cast iron) Min. Drilling Depth: 10mm Quantity: 20pcs Weight: 20g(approx.) Package Includes: 20 x Threaded Inserts