Fine Thread Phosphate-Plated Steel Bugle-Head Square Drive Drywall Screws feature horizontal indentations that help to securely fasten gypsum (drywall) boards to wood studs. The horizontal indentations are for enhanced hold and grip. Fine threads are designed to pierce and thread into steel studs and older harder wood studs. Used in commercial applications.
Fine Thread Phosphate-Plated Steel Bugle-Head Square Drive Drywall Screws feature horizontal indentations that help to securely fasten gypsum (drywall) boards to wood studs. The horizontal indentations are for enhanced hold and grip. Fine threads are designed to pierce and thread into steel studs and older harder wood studs. Used in commercial applications.