Screw channel for cross-furring and for furring walls must have what feature to receive screws?

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Prepare for the California C-35 Lathing and Plastering Contractor Exam. Utilize flashcards and multiple-choice questions with hints to solidify your understanding. Ensure success in your licensing exam!

Multiple Choice

Screw channel for cross-furring and for furring walls must have what feature to receive screws?

Explanation:
The face of a screw channel used with cross-furring and furring walls must be perforated so screws can bite and grip. The holes provide a true bite for the screw threads, letting the channel be securely anchored to the structure and preventing it from slipping or pulling loose as plaster or wallboard is attached. A smooth face wouldn’t provide that screw engagement, and a knurled edge or ribbed back doesn’t give the necessary opening for fastening.

The face of a screw channel used with cross-furring and furring walls must be perforated so screws can bite and grip. The holes provide a true bite for the screw threads, letting the channel be securely anchored to the structure and preventing it from slipping or pulling loose as plaster or wallboard is attached. A smooth face wouldn’t provide that screw engagement, and a knurled edge or ribbed back doesn’t give the necessary opening for fastening.

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