1. Product Overview - 1 piece of 20mm lead screw - Diameter: 20mm - Pitch: 4mm - Lead: 8mm (2 Starts) - Total Length: 520mm (20.47 inches) - Includes 1 brass lead screw nut (no end machining) - Custom manufacturing options available (see Pic 2); contact us for details 2. Nut Options - Standard round brass nut included - Additional nut types available: - Square brass nut - Trimming brass nut - POM round nut - POM trimming nut - Stainless steel round nut - Stainless steel hex nut - Refer to Pics 3, 4, and 5 for more options; let us know your preferences 3. Comprehensive Lead Screw Solutions - Wide range of lead screw styles available - Various diameters, lengths, pitches, and leads offered - Multiple materials to choose from - Related products available, including taps for nut manufacturing - We are committed to fulfilling your lead screw requirements 4. Customer Support and Assurance - Dedicated service team available 24/7 to address your inquiries - Technical support provided before, during, and after your purchase - We aim to build long-term relationships with customers, ensuring a satisfactory shopping experience Use Cases: - Ideal for CNC machinery, providing precise movement and positioning. - Suitable for 3D printers, enhancing print accuracy and reliability. - Perfect for robotics applications, ensuring smooth and controlled motion.