Thomson V-Thread Lead Screws let you achieve very high positioning resolutions. Advancement per turn can be as small as .0125 inches, making the screws highly suitable for applications like microscope stages and places where fine adjustment is required. Lead accuracy is .015 in/ft. Matching Supernuts and Left Hand Screws are available on request and some sizes are available in 1018 Steel. Heason Thomson C3 LeadScrews BallScrews BallSplines Catalogue Heason Thomson C3 LeadScrews BallScrews BallSplines Catalogue Heason Thomson C3 LeadScrews BallScrews BallSplines Catalogue