Check the listing for details. 120Pcs - M3x0.5mm Female Brass Knurled Threaded Insert Embedment Nut for 3D. Condition: New. Listed at 16.25 USD. Description:Made of brass material, with high hardness, durability, good thermal conductivity and heat resistance.The embedding nut has a guide so there is no need for a counterbore or countersink. Smooth surface, firm and uniform, easy to install.These Knurled Insert Nut can be widely used on the injection for tightly fixing.Can be installed by ultrasonic or heat into the plastic matrix, or formed during the injection.Due to the embossing process on the outer diameter of the insert, it forms certain friction and bites force with the brass insert after forming, which can be fixed on the inside so that it cannot fall off. Has a certain torsion and tension.Specification:Material: BrassFinish: Vibration PolishingThread Size: M3 x 0.5mm(Dia*Pitch)Overall Size: 5mm x 4mm / 0.20" x 0.16"(OD*L)Package Content:120 x Knurled Insert Nut.