Specification Brand : uxcell BulletPoint1 : [SIZE] - M3x0.5mm thread size, 0.16" (4mm) long, 0.16" (4mm) outer diameter. BulletPoint2 : [MATERIAL] - Made of brass, rust resistance, good thermal conductivity and heat resistance, can ensure long time using. BulletPoint3 : [FEATURE] - Can be installed by ultrasonic or heat into thread tapered hole, or in during injection. BulletPoint4 : [ADVANTAGE] - No need to counterbore or countersink the boss hole since the insert has guide pilot. BulletPoint5 : [APPLICATION] - Widely used on injection for fastening. Color : Black DriveSystem : Spline ExteriorFinish : Brass ExternallyAssignedProductIdentifier1 : 888742008672 ExternallyAssignedProductIdentifier2 : 0888742008672 FinishType : Brass GpsrSafetyAttestation : 1 GradeRating : commercial ItemName : uxcell Knurled Insert Nuts, M3 x 4mm(L) x 4mm(OD) Female Thread Brass Embedment Assortment Kit, 30 Pcs ItemPackageDimensions_Height : 13.4 centimeters ItemPackageDimensions_Length : 1.6 centimeters ItemPackageDimensions_Width : 9.8 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : hardware-nut-inserts Manufacturer : uxcell Material : Brass MeasurementSystem : Inch MetalType : Brass ModelNumber : a19030600ux0341 NumberOfItems : 10 NumberOfPieces : 30 PartNumber : a19030600ux0341 ProductDescription : - These Knurl Thread Insert Nut can be widely used on the injection for tightly fixing. - Can be installed by ultrasonic or heat into blind hole, or in during injection. - No need to counterbore or countersink the boss hole since the insert has guide pilot. - Made of brass material, good thermal conductivity and heat resistance.