Brass Material: Offers high thermal conductivity for uniform heating, smoother extrusion, improved structural strength, and enhanced interlayer adhesion for better print quality. High Performance: Suitable for high-temperature printing applications, capable of withstanding temperatures up to 450°C, extending nozzle lifespan. Set of 5: Features M6 standard thread, 16.8mm length, and designed for 1.75mm filament, providing reliable and practical performance for 3D printing. Wide Compatibility: Works with most FDM printing materials including PLA, ABS, PETG, TPE, TPU, PC, and high-temperature filaments such as PEEK, PEKK, PEI, PSU, and PPSU. Compatibility: Designed for use with Creativity End 5 S1, End 7 3D printers, and Spider 1.0 hot end kits. Item Type: 3D Printer Extruder Nozzle Material: Chromium Zirconium Copper Filament Diameter: 1.75mm / 0.07in Screw Thread: M6 Maximum Printing Temperature: 450°C Thermal Conductivity: 330 W/m·K Hardness: 6.0 Mohs Package List: 5 x 3D Printer Extruder Nozzle