Feature 1Brass Material: With strong performance and high thermal conductivity, ensures uniform heating of the nozzle, smoother extrusion, and improves the structural strength and printing quality of interlayer adhesion. 2Good Performance: Printing high temperature fiber, and the temperature can get to 450 , extending its service life. 35pcs in All: M6 standard thread, has 16.8mm length, and applicable to 1.75mm filament, very practical and reliable for 3D printing. 4Strong Compatibility: Compatible with most FDM printing materials such as PLA, ABS, PETG, TPE, TPU, PC, and high temperature consumables such as PEEK, PEKK, PEI, PSU, PPSU, etc. 5Application Scope: These brass nozzles are suitable for Creativity End 5 S1, for End 7 3D printers and , for Spider 1.0 hot end kits.Item Type: 3D Printer Extruder NozzleMaterial: Chromium Zirconium CopperFilament Diameter: Approx. 1.75mm / 0.07inScrew: M6 ThreadMaximum Printing Temperature: 450 Thermal Conductivity: 330W/m.kHardness: 6.0 Mohs Package List: 5 x 3D Printer Extruder Nozzle