1/2 x 4 Mushroom Spike Zinc Plated (25)

Coarse threads run approximately 2/3 up the shank to draw the decking tightly to the substrate

7/8-9 x 3 1/4 Hex Cap Screw SS 18-8 (A2)

3/16 x 3 1/4 Phillips Flat TITEN® Concrete Screw Blue - Box (100)

13/16 x 6 Reduced Shank Drill Bit Cobalt (1/2 Shank)

1/4 x 1 1/4 Phillips Flat Hi-Low Thread Concrete Screws Blue Ceramic Coated 3,000) M20-2.50 Socket Cap Screws 12.9 Alloy Plain DIN 912 1/2 x 4 Mushroom Spike1 4 x 1 1 4 Phillips Flat Hi Low Thread Concrete Screws Blue Ceramic Coated . Meets ASTM A510 for carbon steel manufacturing Meets ASTM B117 for salt spray corrosion 500 hours Notched threads for cutting into concrete, brick and cement block Hi Low thread pattern creates higher pullout tolerances Diamond point design cuts and clears debris during installation for better thread engagement Ceramic coating provides protection from corrosion ACQ compatible