Simpson 20d x 4in Annular Ring Shank Box Nail 316 Stainless Steel 25lb BC Post Base Specifically designed to replace nails

Specifically designed to replace nails in certain Simpson Strong-Tie stainless-steel connectors - the only screw approved for that application

Diameter 4-3/8" (111mm)

Mounting Options: Pedestal- or bench-mounted

Dimension H1: 4 in

ensuring the code-required minimum of seven bolt diameters from the end of the post when installed flush with the sill plate

Simpson 20d x 4in Annular Ring Shank Box Nail 316 Stainless Steel 25lb BC Post Base Specifically designed to replace nailsThe Simpson T20ABNB 20d x 4" Annular Ring Shank Box Nail in Type 316 Stainless Steel is engineered for demanding construction applications where superior corrosion resistance and long term holding power are non negotiable. Made in the United States, this 25 lb bulk pack delivers professional grade performance in coastal, marine, and high moisture environments. The annular ring shank dramatically increases withdrawal resistance compared to smooth shank