The Monstro-Clamp 4" fastens to those really big, (2-3/8" OD to 4" OD), pipes. CNC cut from solid one inch thick aluminum plate. 1/2"-13 × 4″ square head bolt.
2" pipe, 2.375" OD
3.5" pipe, 4" OD
250 Pounds
1/2″ × 1″ hex head bolt for fastening fixture
1/2″ × 4″ square head set screw to fasten to pipe.
each