General description These AlwaysH threaded knurled nuts are designed for use in 3D printing and various applications requiring durable fastening solutions. Made from high-quality brass, these nuts offer excellent strength and stability, making them ideal for embedding into plastic parts. Technical specifications Material: Brass Sizes: M2, M2.5, M3, M4, M5, M6 Quantity: 220 pieces Usage Suitable for injection molding, PCB assembly, and fastening most plastics including PLA, PETG, ABS, PPS, and PP. Can be embedded into plastic parts using ultrasound or a soldering iron.