This video shows how to install the SteerStopper® on a bicycle with a Threadless Headset.
SteerStopper® pinch bolt torque: 30-inch lbs (3.4Nm) or 1/8 turn after spinning the bolt in until it stops.
Tightening Receiver bolts: Holding the short end of the Allen wrench, carefully tighten just enough that the receiver cannot be rotated by hand.
Here is a good video from Park Tool on Adjusting a Threadless Headset
The first part of this video is for installation of the SteerStopper® on a bicycle with a Quill Stem. To view the installation of the Universal-Fit Receiver, fast forward to the 4:25 mark.