Tapcon® 1/4 x 1-3/4 Hex Head Concrete Screw, Blue

Concrete Screw, Tapcon®, Hex Head, 1/4 x 1-3/4in, Blue Zinc Plated Steel, Hex head size: 5/16in, Drill size: 3/16in (for 3/16in screws) or 3/16in (for 1/4in screws), Tempered hi-low thread cuts directly into pre-drilled concrete, brick, or masonry, No anchor required, Removable and re-installable, UL listed