DescriptionMust be ordered with mating glide nutStandard end machining available per the catalogContact us for more details for custom end machiningDimension[d2] Root Diameter0.255 in[d3] Bearing Journal Diameter, Recommended4 mmDiameter, Nominal Screw0.375 inNumber of Starts1Standard Lead Accuracy ±0.003 in/fttravel per shaft rev0.1 in