- What You Receive: 1 piece of 12mm lead screw with a diameter of 12mm, a pitch of 2mm, a lead of 8mm, and 4 starts. The total length is 850mm (33.46 inches). It comes with one brass lead screw nut, with no end machining included. Custom lead screws are available upon request; please contact us for options. - Versatile Nut Options: The standard round brass nut accompanies the lead screw, but we offer other options as well, including square brass nuts, trimming brass nuts, POM round nuts, POM trimming nuts, stainless round nuts, and stainless hex nuts. See images for details. Let us know your specific requirements. - Comprehensive Lead Screw Solutions: We provide a variety of lead screws in different diameters, lengths, pitches, and leads, as well as several material choices. We also offer related products, such as taps for creating nuts, ensuring you have everything you need for your project. - Reliable Customer Support: Our dedicated service team is available 24/7 to assist with your inquiries. We offer technical support before, during, and after your purchase, aimed at fostering long-term cooperation and ensuring a satisfying shopping experience. Applications: - Ideal for CNC machines and 3D printers where precise motion control is required. - Perfect for robotics projects that necessitate reliable movement along a shaft. - Useful in various mechanical assemblies needing customizable support and precision.