Monstro-Coupler

The Monstro-Coupler 2.5" will fasten up to 2.5" OD tube.
The Monstro-Coupler 3" will fasten up to 3" OD tube.
The Monstro-Coupler 3.625" will fasten up to 3.625" OD tube.
The Monstro-Coupler 4" will fasten up to 4" OD tube.
The Monstro-Coupler 4.5" will fasten up to 4.5" OD tube.
The Monstro-Coupler 5.56" will fasten up to 5.56" OD tube.

We can make almost any size, if you do not see what you need here.

The Monstro-Couplers have our wide wing nut for fastening the clamp to the pipe or tube. 1/2" -13 threaded hole in base of clamp with 1-1/4" Gr 8 zinc plated steel bolt with nylock nut. 1" thick 6061T-6 aluminum alloy. Safe Working Load 1100 Pounds, (500 KG).