Camo Fasteners - 1-7/8" - TYPE 316 STAINLESS STEEL Hidden Deck Screws - 350 pcs For 100 Sq. Ft. of 1" or 5/4" Decking Type 316 stainless steel (salt water safe) Installed on the side of the decking to hide the fastener Easy to use system Perfect for composite, pvc and capstock decking Camo Tool Required (Sold Seperately)