6-18 x 1 5/8 Square Drive Trim Head Drywall Screw Fine Thread Black Phosphate CG It features a hex head

It features a hex head for easy driving and a flange head that provides a large bearing surface to distribute the load

preventing the nut from spinning or loosening over time

this insert rivet nut boasts excellent corrosion resistance and longevity

making it suitable for use in both indoor and outdoor environments

and the drive size is 1/4 inches

6-18 x 1 5/8 Square Drive Trim Head Drywall Screw Fine Thread Black Phosphate CG It features a hex headThese 6 18 x 1 5 8 square drive trim head drywall screws are designed for use in drywall applications. They feature a fine thread for a secure hold and a black phosphate finish for corrosion resistance. The square drive head provides a secure grip for driving, and the trim head design sits flush with the drywall surface for a clean, professional finish. These screws are ideal for a variety of drywall projects, including hanging drywall, attaching