Minimum Lead Screw Diameter

This applet will help you find the minimum diameter of a lead screw as it relates to column strength and the slender ratio. Required inputs are lead screw span, load to be applied, and end fixity type.


Distance between Nut and Support (in):

Load on Lead screw (lb):

End Support Type:
Safety Factor:
Usually between 1 and 3.


Minimum Diameter of Lead screw (in):

Max Compressive Load (in):

Applied Load Less than Column Stregnth?