6-18 x 1 5/8 Square Drive Trim Head Drywall Screw Fine Thread Black Phosphate CG and the drive size is

and the drive size is 1/4 inches

Their sharp Type 17 point and coarse threads provide excellent grip and penetration

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

This hex nut is ideal for use in construction

6-18 x 1 5/8 Square Drive Trim Head Drywall Screw Fine Thread Black Phosphate CG and the drive size isThese 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