6-20 x 2 1/2 Phillips Bugle Head Full Thread Self Drilling Drywall Screw Black Phosphate NSTB while the non-serrated plain finish

while the non-serrated plain finish ensures a smooth surface for easy insertion and removal

such as furniture

while the square shape allows for easy tightening and loosening using a wrench or socket

It features external teeth that bite into the mating surface

They meet ANSI B18

6-20 x 2 1/2 Phillips Bugle Head Full Thread Self Drilling Drywall Screw Black Phosphate NSTB while the non-serrated plain finishThese 6 20 x 2 1 2 Phillips Bugle Head Full Thread Self Drilling Drywall Screws are designed for fastening drywall to wood or metal studs. They feature a sharp point that penetrates the material without the need for pre drilling, and a bugle head that countersinks into the surface for a flush finish. The black phosphate coating provides corrosion resistance and a professional appearance. These screws are ideal for a variety of drywall applications,