7mm smooth to 1/2" acme coupler

This coupler goes between a 7mm smooth shaft (stepper motor) to a 1/2" acme thread lead screw. The coupler is threaded on the 1/2" side to ensure a snug connection. M4, 6-24, 6-32, or smaller machine screws should work.

Requires:
6- machine screws (M4, M3, 6-24, 6-32, or equivalent)
6- nuts