Metal Insert Brass Nut Screw Stainless Steel Copper Melt Knurled Thread Tools

This Brass Insert Nut and Screw Assortment Kit is perfect for 3D printers and various projects. The set includes 260-500pcs of M2, M3, and M4 hot melt knurled nuts for secure embedment in plastic, along with 304 stainless steel screws. The brass nuts are designed for injection molding applications, offering high durability and corrosion resistance. Nut sizes are measured by inner diameter, length, and outer diameter, while the screw sizes are defined by thread diameter and thread length (excluding the screw head). Ideal for DIY enthusiasts and professionals alike.