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Static field route #104

What do I do when bolts started in one corner only causing twisted flange?

Rectangular Duct Assembly: TDC / Ductmate / FlangesPolished core starter — connector/detail check

Correct the corner condition before tightening the flange: bolts started in one corner only causing twisted flange. Corners help align and hold the flanged joint together.

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In Rectangular Duct Assembly: TDC / Ductmate / Flanges, I’m looking at: What do I do when bolts started in one corner only causing twisted flange? What should I verify before I cut, drill, seal, cover, move, or install?

Do not

Do not leave loose or missing corner hardware because the straight sides look tight.

Why it matters

Project specs/submittals, manufacturer connector instructions, shop standard, foreman direction, and approved flange detail.

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