Radially preloaded lead screws employ axially sectioned nuts that are forced into the flanks of the screw for a close mesh. A common method presses the nut inward with a ramped sleeve loaded by a compression spring. The operating environment can sway the choice of material and style for the power screw. Lead screw configurations typically come in a stainless steel screw and plastic nut combination, or with a carbon steel screw and bronze nut. The stainless and plastic combination, which can do without lubrication, is highly corrosion resistant regardless, withstanding clean rooms, outdoor moisture, and so on.
Temperature is a different story.
Lead screws have relatively straightforward geometry and performance, and lend themselves to design adjustments fairly easily. With custom ball screws, you may have to work within stricter parameters to satisfy your design, due to the more complicated geometry necessary to the recirculating ball scheme.