Simpson 12d x 3 1/4" Preservative-Treated Wood Decking Nail, 316 Stainless Steel PSQ Piling Strap Flat head with nibs helps

Flat head with nibs helps countersink the screw for a flush finish

providing the heavy-duty strength and durability required for structures with additional strength and safety requirements

Anchor Bolt Installation: Installs with 3/4 in

Install with 16d common nails in the header and 10d x 1-1/2 in

Simpson 12d x 3 1/4" Preservative-Treated Wood Decking Nail, 316 Stainless Steel PSQ Piling Strap Flat head with nibs helpsSimpson 12d x 3 1 4" Preservative Treated Wood Decking Nail in Type 316 Stainless Steel is a high performance exterior fastener engineered by Simpson Strong Tie for deck and dock construction. Featuring an annular ring shank and a full round checkered head, this nail delivers superior holding power and long term corrosion resistance in outdoor environments where pressure treated lumber and moisture exposure are constant challenges. The 9 gauge, 0.