The Slip on Set Screw Stop Collar is a single piece collar and the gripping force is applied by one row of setscrew. It is used where high axial load tighten the collar to the casing tightly. They slid the casing pipe without any issue and it is quite easy to install.
These are most effective where low annual clearance is chanced upon. The stop collars come with a special Phosphate coating process that prevent it from getting rust and come in ranges starting from 4 1/2 ” to 20 “.