1. What You Receive 1 piece of 8mm lead screw with a diameter of 8mm, pitch of 2mm, lead of 10mm (5 starts), and a total length of 340mm (13.39 inches). Includes 1 brass lead screw nut, no end machining. Customization options are available; please contact us for details. 2. Variety of Nut Options The included standard round brass nut can be complemented with various alternatives, including square brass nuts, trimming brass nuts, POM round nuts, POM trimming nuts, stainless round nuts, and stainless hex nuts. Specific options are illustrated in the provided images. 3. Comprehensive Lead Screw Solutions We offer a wide range of lead screws featuring different diameters, lengths, pitches, leads, and materials to meet diverse project requirements. Additionally, we provide related products like taps for nut fabrication. 4. Dedicated Customer Support Our professional service team is available 24/7 to address any inquiries. We offer technical assistance before, during, and after your purchase, ensuring a smooth experience and long-term customer satisfaction. Use Cases: - Ideal for CNC machines where precise movement is required. - Perfect for 3D printers that need reliable and consistent lead screw performance. - Suitable for robotics applications where accurate linear motion is essential.