270 Piece Wood Screw Assortment - #6 to #14 - Phillips Flat Head - Zinc Contents: 6 x 1/2" Wood Screw - Phillips Flat Head - Zinc Plated (25) 6 x 5/8" Wood Screw - Phillips Flat Head - Zinc Plated (25) 6 x 3/4" Wood Screw - Phillips Flat Head - Zinc Plated (25) 8 x 1/2" Wood Screw - Phillips Flat Head - Zinc Plated (20) 8 x 3/4" Wood Screw - Phillips Flat Head - Zinc Plated (20) 8 x 1" Wood Screw - Phillips Flat Head - Zinc Plated (20) 10 x 1/2" Wood Screw - Phillips Flat Head - Zinc Plated (15) 10 x 3/4" Wood Screw - Phillips Flat Head - Zinc Plated (15) 10 x 1" Wood Screw - Phillips ...

Contents: 6 x 1" Drywall Screw - Phillips Bugle Head - Black Phosphate - Coarse Thread (50) 6 x 1-1/4" Drywall Screw - Phillips Bugle Head - Black Phosphate - Coarse Thread (50) 6 x 1-5/8" Drywall Screw - Phillips Bugle Head - Black Phosphate - Coarse Thread (50) 6 x 2" Drywall Screw - Phillips Bugle Head - Black Phosphate - Coarse Thread (50) 8 x 2-1/2" Drywall Screw - Phillips Bugle Head - Black Phosphate - Coarse Thread (40) 8 x 3" Drywall Screw - Phillips Bugle Head - Black Phosphate - Coarse Thread (35)

Self-drilling (TEK) point drywall screws are used for thicker metal studs.

Coarse thread drywall screws have wide spaced threads and are standard for attaching drywall to studs.

8X1 1/4 Phillips Bugle Head Full Thread Self Drilling Drywall Screw Black Phosphate. Concrete screws cut their own threads when used in concrete, block or brick. Carbide bits are recommended for use in masonry. Bugle head screws are commonly used for drywall because it distributes bearing stress over a wider area than a flat head.