Fits from (1-1/4" pipe) 1.66" OD to 2" OD truss tube. The Mini-Claw is a light duty clamp, and is not designed to side arm fixtures. The Mini-Claw has a 1/2"-13 tpi by 3/4" long hex head grade 5 bolt for fastening to the fixture.
Minimum Size: 1.25" pipe, 1.66" OD
Maximum Size: 1.5" pipe, 1.90" OD pipe, 2" OD truss tube