1. What You Receive: This package includes one 12mm lead screw with a diameter of 12mm, a pitch of 2mm, and a lead of 10mm across 5 starts. The total length measures 1050mm (41.34 inches). It comes with one brass lead screw nut and requires no end machining. Custom manufacturing is available—please contact us for details. 2. Diverse Nut Options: The standard round brass nut is included, but we also offer various nut types including square brass nuts, trimming brass nuts, POM round nuts, POM trimming nuts, stainless round nuts, and stainless hex nuts. Refer to images 3, 4, and 5 for examples. 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 varying diameters, lengths, pitches, and leads in different materials. We also offer related products, such as taps for nut manufacturing. Our goal is to meet all your lead screw needs. 4. Reliable Customer Support: Our professional service team is available 24/7 to address any inquiries. We provide technical support before, during, and after your lead screw purchase. As a seller committed to long-term customer relationships, we ensure a satisfactory shopping experience. Applications: Ideal for CNC machines, 3D printers, and automation projects, this lead screw system offers precise linear motion and durability, making it an essential component for various mechanical setups.