The spline nut is of a straight cylindrical shape. When it is necessary to apply a torque, insert a key into the keyway. Type LT is the most compact of all Ball Spline types.

 The spline nut can be attached to the housing via the flange, making assembly simple. It is most suitable where the housing may deform if a keyway is cut thereon, and where the housing width is limited. Knock pins that can be driven into the flange completely eliminate the angular backlash that occurs in fitting part.