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3/16 x 2 3/4 Simpson Hex Head Titen Turbo™ Concrete and Masonry Screw Anchor Zinc Plated w/ Ceramic Coat Blue (1/4 in. Hex) - Box (100) 6-Lobe Simpson Deck-Drive™ DWP WOOD Screw 305 Stainless Steel (Collated) 1 1/4-12 x 4 GradeSimpson Titen Turbo Concrete and Masonry Screw Anchors have a zinc plated finish with a ceramic coating for superior corrosion resistance. The anchors have a 3 16" diameter and a 2 3 4" length, with a 1 4" hex head. This box of 100 is ideal for a broad range of applications.