BZP zinc-plated, twin-thread PZD screws provide strong, multipurpose fasteners. Includes sizes 5/8" x 4, 3/4" x 4, 1" x 6, 1-1/4" x 6, 1" x 8, 1-1/4" x 8, 1-1/2" x 8, 1-1/2" x 10, 2" x 10, 2-1/2" x 10, 3" x 10. Handy storage case with compartments.