This was pulled from working medical equipment. Overall length is just under 36 inches. The extra vinyl piece around the screw is not threaded and slides. The screws that mount the head unit were threaded directly into the lift. You can mount this in a similar fashion or find three nuts for the screws and come up with another mounting plan. The item “SFK 24 V DC Linear Ball Screw / Spline Actuator Made In Sweden” is in sale since Tuesday, May 23, 2017. This item is in the category “Business & Industrial\Automation, Motors & Drives\Linear Motion\Linear Actuators”. The seller is “i_40_sales” and is located in Noble, Oklahoma. This item can be shipped to United States.