Grip-Rite 412CWSTSM Heavy Duty Fastener, 10 x 4 1/2"

The Grip-Rite 412CDWS1M is a heavy-duty, contractor-grade fastener designed for demanding structural and specialized multi-layer drywall applications. At an extended 4-1/2 inches in length, this screw provides deep penetration and maximum shear strength when fastening thick acoustical panels, double-layered firewall gypsum, or heavy insulation boards to wood framing. The deep, aggressive coarse threads ensure rapid installation and tight clamping force between the substrate and the wood studs. Built with a precise bugle head, it cleanly compresses drywall material to sit perfectly flush or slightly countersunk without fracturing the delicate paper surface. The durable black/gray phosphate coating offers essential protection against moisture during the mudding phase while improving compound bonding. Packaged in a bulk 1,000-count commercial carton, this item is tailored to meet the volume demands of high-production drywall crews and large-scale commercial job sites.