#7 x 1-5/8" Simpson Strong-Tie T15 Trim Head Deck Screw - 316 Stainless Steel, Gray, Pkg. 70 TA Staircase Angles Load values allowed assume a

Load values allowed assume a carrying member of not less than 3 1/2"

If you have a nominal post measuring 7-1/2" x 7-1/2" you will need an APB88 Ornamental Post base

(2) APB44DSP Post Base Side Plates

while the strap fastens to wood framing using approved nails

#7 x 1-5/8" Simpson Strong-Tie T15 Trim Head Deck Screw - 316 Stainless Steel, Gray, Pkg. 70 TA Staircase Angles Load values allowed assume aThe Simpson Strong Tie Trim Head Decking Screw is designed for PVC and composite decking projects where corrosion resistance and appearance matter most. Made from 316 stainless steel for lasting durability, these screws perform reliably in marine or high exposure environments. Painted head options in 13 colors are matched to leading decking brands for a seamless, concealed finish. For a full reference, see the Composite Decking Color Matching Guide.