Screw only, No Ball nutLegacy ProductLegacy ProductAdditional ball screw coatings (thin dense chrome, black oxide, manganese phosphate) are available as a custom item.Our standard catalog ball screws feature a high luster polished and oiled finish, which provides smoother operation and a high quality look and feel.SpecificationsSpecificationsValueLead Accuracy Grade0.003 in/ftMaterialStainless SteelRolled/Ground/WhirledRolled ThreadTemperature Max300 °FThread DirectionRHWeight3.8 lbDimensionsDimensionValue[d2] Root Diameter0.39 in[d3] Bearing Journal Diameter, Recommended8 mmDiameter, Nominal Screw0.625 inLength72 intravel per shaft rev0.5 in