Wrong screw length damages liner/equipment/damper
Before fastening near liner, dampers, equipment cabinets, controls, or coils, verify screw length. The screw point is doing work where you cannot see it.
Stop if This fastener is near liner/equipment/damper parts. What screw length do you want here so we don't hit anything behind the metal? Watch out Do not use whatever screws are in your pouch near hidden moving or electrical parts. Check Check what sits behind the metal before driving screws. Compare screw length to duct wall, liner, damper blade path, and equipment cabinet depth. Use the approved fastener type/length for the condition. Stop if a screw may hit controls, coils, wiring, liner, or damper movement. Steps Check what sits behind the metal before driving screws. Compare screw length to duct wall, liner, damper blade path, and equipment cabinet depth. Use the approved fastener type/length for the condition. Stop if a screw may hit controls, coils, wiring, liner, or damper movement. Say this to your foreman This fastener is near liner/equipment/damper parts. What screw length do you want here so we don't hit anything behind the metal?
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