SALUTUY M4 Threaded Ball,20Pcs M4 Threaded Ball Stainless Steel Silver White Bright Finish Lever Knob Built in Screw Nut Replacement Knob for 3D Printer Magnetic Joints

• PRINTER ACCESSORIES: These m4 threaded balls are mainly used to fill ink in the printer and are used in conjunction with the screw to achieve ink transfer by punching holes in the ink cartridge. It is an important accessory for the printer and ensures that the printer can operate normally.
• STANDARDIZED DESIGN: The drilling steel bead adopts standard M4 threaded hole design, making installation more convenient and with higher accuracy. The application of reaming is not only convenient, but also ensures the matching of the threaded ball with other components, improving the performance of the printer.
• MATERIAL: The metal ball fastener is made of heat-resistant and corrosion-resistant stainless steel, which has high strength and durability. This choice of material ensures the practicality and longevity of the drilling ball.
• CONVENIENT REPLACEMENT: The kit contains 20 M4 threaded balls, which are convenient to operate and easy to replace. When the magnetic joint ball is damaged or needs repair, you can easily replace it without affecting the normal of the printer.
• FITS SPECIFIC MACHINE MODELS: These drilled and threaded tapping balls are suitable for use with the kossel delta 3D printer magnetic ball joint system. They are carefully designed to ensure a perfect fit with this model, giving you a high-quality printing experience.

Specification: Item Type: M4 Threaded Ball Material: Stainless Steel Diameter: Approx. 10mm / 0.4in Aperture: Approx. 3.8mm / 0.15in(about M4) Purpose: Drilling Color: Silver white Package List: 20 x M4 Threaded Ball