- Product Specifications: This package includes a 20mm lead screw with a rod diameter of 20mm, a pitch of 4mm, a lead of 4mm (single/1 start), and a total length of 100mm (3.94 inches). It comes with one brass lead screw nut and no end machining. Customization options are available—please message us for details. - Diverse Nut Options: The standard accessory is a round brass nut. We also offer a variety of nuts including square brass, trimming brass, POM round, POM trimming, stainless round, and stainless hex nuts. Refer to images 3, 4, and 5 for options. Let us know your specific requirements. - Comprehensive Lead Screw Solutions: With access to factory resources, we provide a wide range of lead screws with varying diameters, lengths, pitches, and materials. We also supply related products, such as taps for nut fabrication, ensuring you have everything you need for your project. - Dependable Customer Support: Our dedicated service team is available 24/7 to address your inquiries. We offer technical assistance before, during, and after your purchase, ensuring a seamless experience. Our goal is to foster long-lasting relationships with our customers by providing exceptional service. - Practical Applications: Ideal for CNC machines, 3D printers, and automation projects, our lead screws ensure precise movement and reliability in various mechanical setups. Whether you are building equipment or replacing parts, our products meet your needs effectively.