All-Thread Rod Coupling Alignment | TinnerFlow

Field problem

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All-Thread Rod Coupling Alignment

Couplings join all-thread rods for longer hanger lengths. Misaligned couplings create weak points.

Hangers, Supports, Rods & Trapeze 2nd Year YELLOW

Stop if

For this hanger rod coupling, how many threads should be engaged? Should I use jam nut for extra security?

Watch out

Don't install couplings with partial thread engagement. Don't use couplings in seismic bracing without engineer approval. Don't assume couplings as strong as continuous rod.

Check

Both rods threaded fully into coupling?
Coupling centered?
Rod plumb?
Lock nut or jam nut?

Steps

Both rods threaded fully into coupling?
Coupling centered?
Rod plumb?
Lock nut or jam nut?

Say this to your foreman

For this hanger rod coupling, how many threads should be engaged? Should I use jam nut for extra security?

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