Aligning TDC flanges before bolting

Can I use drift pins/C-clamps to hold this TDC alignment after I re-support the run?

I'm at this TDC/Ductmate joint. The gasket is on one flange face and the duct is close, but the holes/flange need help holding alignment. Do you want me to re-support and level it first, then use drift pins at the corners and C-clamps on the flange while I start the corners/cleats?

Rectangular Duct & Fittings 2nd Year BLUE

Stop if

TDC alignment issue: I do not want to force a twisted flange with a drift pin or C-clamp. I have the location/photo and need direction before tightening hardware.

Watch out

Do not use a drift pin, bolt, or C-clamp to force a crooked or unsupported TDC joint together.

Check

room/grid/area
system tag or duct run
photo of the joint
whether gasket is on one flange face
whether duct is level/aligned
what hardware is available

Say this to your foreman

101 aligning TDC flanges before bolting Rectangular Duct Assembly: TDC / Ductmate blue 2 Can I use drift pins/C-clamps to hold this TDC alignment after I re-support the run? I'm at this TDC/Ductmate joint. The gasket is on one flange face and the duct is close, but the holes/flange need help holding alignment. Do you want me to re-support and level it first, then use drift pins at the corners and C-clamps on the flange while I start the corners/cleats? TDC alignment issue: I do not want to force a twisted flange with a drift pin or C-clamp. I have the location/photo and need direction before tightening hardware. Do not use a drift pin, bolt, or C-clamp to force a crooked or unsupported TDC joint together. drift pins c-clamps c clamps TDC Ductmate flange alignment gasket cleats