179 (D) 
 
Our locking collar is used in our Freestanding Roof Edge Protection system to fix the out rigger to the weight. since all the system rely on tube with 48.3 OD so all of the clamps needed must be size D. 
 
This connection is a very effective clamp to make the counterweight and rigger tube well fixed.
It comes with grub screw to hold the clamp on the tube and retain the counterweight tightly. 
 
Please note that you need one locking collar for each counterweight. 
 

D: Size to fit 48.3mm O.D. tube
 
To check out our other Locking Collar clamp sizes, please click here.