The 2 & 3 slot brackets have a 5/8” solid rod that keeps the cable in place. It is removable and makes adjustments quick and easy.
The slotted channel has a 1/2” carriage bolt that connects a tube to the channel. All that is needed is a 3/4” wrench to make the adjustment.
Adjustable Cable Brackets, 2 Slot Adjustable Cable Bracket, 3 Slot Adjustable Cable Bracket