Replacement Parts › DWC Z Axis Flex Coupler Image 1 of 2 Image 2 of 2 DWC Z Axis Flex Coupler $22.00 DWC CNC Motor to Z Axis Lead screw Flexible Coupling. stepper motor to lead screw couplingType: Shaft Flexible parallel couplingMaterial: Aluminium Purchase Added! DWC CNC Motor to Z Axis Lead screw Flexible Coupling. stepper motor to lead screw couplingType: Shaft Flexible parallel couplingMaterial: Aluminium Related Products DWC2440 Power Button Switch $22.99 DWC1824 & DWC2440 Axis Linear Bearing from $27.00 DWC1824 Anti-Backlash Nut $21.00 DWC2440 Control Box Fan $27.99 Hold Down Clamp $6.99