1. What You Receive: This package includes one 8mm lead screw, featuring a diameter of 8mm, a pitch of 4mm, a lead of 16mm, and 4 starts. The total length is 1080mm (42.52 inches). A brass lead screw nut is also included, without any end machining. Custom lead screws can be manufactured based on your specifications; please contact us for details. 2. Variety of Nuts Available: The standard nut that accompanies the lead screw is a round brass nut. We also offer square brass nuts, trimming brass nuts, POM round nuts, POM trimming nuts, stainless round nuts, and stainless hex nuts. View examples in the accompanying images and let us know your specific requirements. 3. Comprehensive Lead Screw Solutions: Our factory resources allow us to provide a wide range of lead screws with various diameters, lengths, pitches, and leads. We also offer products related to lead screws, including taps for nut manufacturing. Whatever your project needs, we are here to assist. 4. Reliable Customer Support: Our professional service team is available 24/7 to address your inquiries. We provide technical support before, during, and after your lead screw purchase. As a seller committed to building long-term relationships with customers, we strive to ensure a satisfying shopping experience. Applications: - Used in 3D printers for precise movement control. - Ideal for CNC machines requiring reliable linear motion. - Perfect for robotics projects that demand accurate positioning.