For M12 threaded rods diameter of 1/2". Cut the threded rod or bolt to the required length before final assembly. Secure the bracket between 2 nuts. Allow the rod to protrude into the bracket about 3/8" for leveling after the installation is complete.

Can be attached directly by screws or rods with a maximum diameter of 1/2". Before mounting the bracket it is advisable to standardize the length of both the rods and screws. Fix the bracket between nuts allowing the screw on the inside of bracket to protrude about 0.59". When fixture is completed, it is then possible to regulate perfect rail levelness by adjusting the nuts that fasten the brackets.