20d (4") Preservative-Treated Wood Decking Nail, Annular Ring Shank, 25lb (1,000 fasteners) Blue Masonry Screws With a hex washer head

With a hex washer head that offers controlled driving and flush seating

Designed for use with the Quik Drive auto-feed system

making them ideal for both interior and exterior projects

Self-drilling tip eliminates the need for predrilling in most materials

this Simpson Strong-Tie F08T162WDM Self-Drilling Fiber Cement Screw delivers

20d (4") Preservative-Treated Wood Decking Nail, Annular Ring Shank, 25lb (1,000 fasteners) Blue Masonry Screws With a hex washer headSimpson T20PTDB wood decking nails are available in either type 304 or type 316 stainless steel for superior corrosion resistance. Checker pattern on nail head blends well with wood grain, reduces glare from sunlight and accepts surface finishes. Annular ring shank increases pull out resistance to provide a secure attachment that reduces cupping.