SPAX Stainless Steel Decking 5X80 (100)

Unique decking screw with three way action:

1. patented ground serrations on the lower thread remove the need for   pre-drilling
2. non-threaded shank allows two materials to be pulled together tightly
3. upper thread locks the deck board securely down tight

Stainless Steel A2 prevents rustingCylindric head sits flush in the wood