Some good reading in that link about them, they do come with certain accuracy from one to another,
The anti-turn option is used in cases where the load to be moved is capable of rotation. In such cases the screw and load will spin without axial movement unless the anti-turn device, which is a keyway in the protective tube, is chosen.
Bellows can provided for both designs when used in particularly difficult environments. Acme screw jack catalogue pages 40 and 74.
Higher levels of safety can be integrated. For both designs a safety nut is available. This is a back-up feature that prevents the load dropping in an uncontrolled manner in the event of thread breakage due to overload or wear. The safety nut works in one direction only. Catalogue pages 42 and 76. Also the wear can be monitored using a thread wear option which gives a limit switch output when a set level is exceeded, catalogue pages 43 and 77.
For applications that require a high level of positioning accuracy, both designs of screw jack can be provided with an adjustable backlash feature, catalogue page 46.
Edit
(Easy to get from 36v to 24V and put a different stoke in it to compensate
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http://www.techdrives.co.uk/products/screw-jacks-faqs.html#what-is-the-efficiency-of-screw-jacks