#10 x 1 1 2 Elco Dril Flex Hex Washer Head Steel Stalgard QTY 2500 DeWALT SKU DFM4EMF640 The Crete Flex anchor is 037F75HFB5Z DeWALT SKU DFM4EMF640 The Crete Flex anchor is a 410 stainless steel screw anchor for light to medium duty applications in concrete and masonry block base materials Everything else is included here and presented in a handy blow molded carrying case with a locking tab to keep it shut Fasteners coated with Stalgard® SUB typically show no red rust or other base metal corrosion on significant surfaces after 2000 hours of salt spray exposure in accordance with ASTM B117 ductility and resistance to embrittlement required for critical applications