1. What You Receive: This package includes one 8mm lead screw with a rod diameter of 8mm, a pitch of 2mm, a lead of 4mm, and 2 starts. The total length is 1420mm (55.91 inches). Also included is one brass lead screw nut, with no end machining. Customization options are available; please contact us for details. 2. Diverse Nut Options: The standard brass nut is round, but we also offer a variety of others including square brass nuts, trimming brass nuts, POM round and trimming nuts, as well as stainless steel options such as round and hex nuts. View images 3, 4, and 5 for examples. Let us know your specific requirements. 3. Comprehensive Lead Screw Solutions: Our factory resources enable us to provide a wide range of lead screws with various diameters, lengths, pitches, and materials. We also offer related products, including taps for nut fabrication. We are committed to meeting your lead screw needs. 4. Reliable Customer Support: Our dedicated service team is available 24/7 to assist you with any inquiries. We provide technical support throughout your purchasing journey, ensuring a seamless experience. As a seller focused on building long-term relationships, your satisfaction is our priority. Use Scenarios: - Ideal for CNC machines requiring precise motion control. - Perfect for 3D printers needing reliable and accurate movement. - Suitable for automation systems where consistent performance is essential.