Specification Brand : Mardatt BulletPoint1 : 1.☛[15 Assorted Sizes] --- This set contains 300 pieces select thread inserts in 15 different sizes(Thread Size x Height x Outer Dia.): M2x3x3.5,M2x4x3.5,M2x6x3.5,M2x8x3.5,M3x6x5,M3x8x5,M3x10x5,M4x6x6,M4x8x6,M4x10x6,M5x6x7,M5x8x7,M5x10x7,M6x10x7,M6x12x7. Comes with sturdy case for convenient storage. BulletPoint2 : 2.☛[Quality Brass Material] --- With excellent conduction of heat, heat tolerance, rust and corrosion resistance, wear resistance. These brass threaded inserts for plastic are strong enough to provide easy insertion and long service life. BulletPoint3 : 3.☛[Exquisite Workmanship] --- These brass inserts are made in strict accordance with standard. The nice, threaded thru hole are clean without burr, accurate, uniform, not easy to deform, offering secure and durable performance. BulletPoint4 : 4.☛[Provide High-Stability] --- This knurled nuts can form a tight grip by inserting into 3D printed plastic part, making it effectively resists torque and pull-out, won't cause cracks easily. A soldering iron is required during installation. BulletPoint5 : 6.☛[Versatile Use] --- Designed for use in 3D printed thermoplastic plastics such as PLA, PETG, ABS, PPS, PP, etc.. These brass threaded inserts for plastic are widely apply to industries including electronics, automotive, medical, recreational equipment and much more. Color : Assorted DriveSystem : Spline ExteriorFinish : Plastic,Brass ExternallyAssignedProductIdentifier1 : 782125974649 ExternallyAssignedProductIdentifier2 : 0782125974649 FinishType : Brass GpsrSafetyAttestation : 1 GradeRating : industrial ItemName : Mardatt 110pcs M2 M3 M4 M5 M6 Brass Inserts Threaded Inserts Brass Knurled Nuts Embedment Nut Heat Set Insert Assortment Kit for 3D Printing Plastic ItemPackageDimensions_Height : 18.6182 centimeters ItemPackageDimensions_Length : 2.2098 centimeters ItemPackageDimensions_Width : 9.4996 centimeters ItemPackageQuantity : 1 ItemShape : Square ItemTypeKeyword : hardware-nut-inserts Manufacturer : Mardatt Material : Brass MeasurementSystem : Metric MeasurementSystem1 : Metric MeasurementSystem2 : Inch MetalType : Brass MetalType1 : Iron MetalType2 : Brass ModelNumber : M-172 NumberOfItems : 8 NumberOfPieces : 110 PartNumber : M-172 ProductDescription : ♞Mardatt Brass Threaded Inserts for Plastic Brass Inserts 3D Printing Knurled Nut Brass Embedment Nut Heat Set Insert