Uxcell M3 Knurled Thumb Nuts 15 Pack Iron For 3D Printer DIY Uxcell Knurled Thub Nuts, 10Pcs 3x0.5 Iron Round Knobs Fastener For DIY Fastener Kit Product Specifications:Material: IronColor: Silver ToneThread Size: M3Pitch: 0., 5mmTotal Size: 11 x 7mm / 0., 44 x 0., 28inch (D*H)Package Included:15 Pcs x Knurled Thumb Nuts Uxcell Knurled Thumb Nuts, 10Pcs M3x0.5mm Iron Round Knobs Fasteners for 3D Printer Parts, Silver Tone. [Knurled Thumb Nuts] - Thread Size: M3; Pitch: 0.5mm. [Easy to Use] - This nut with knurled surface that can be easily tightened, assembled and disassembled by hand without any tools [Knurled Thumb Nuts] - Thread Size: M3; Pitch: 0., 5mm Knurled Thumb Nuts from MISUMI | MISUMI Descriptions:Made of iron material that is high hardness, no rust and perfect corrosion resistance. [Material] - Made of iron material that is high hardness, no rust and perfect corrosion resistance. [Size] - 11 x 7mm / 0., 44 x 0., 28inch;(D*H)