#14 x 1-3/4 Elco Crete-Flex / Hex Washer Head / 410 Stainless / Stalgard Bi-Flex structural screws are bi-metal

Bi-Flex structural screws are bi-metal self-drilling tapping screws that provide the corrosion resistance of 300 series stainless steel and the efficiency of drill screws

DeWALT SKU-DFM4EMF470-The Crete-Flex anchor is a 410 stainless steel screw anchor for light to medium duty applications in concrete and masonry block base materials

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

Patented grooved insert body prevents component separation even if the flute is broken off prior to pour

during installation of painted fasteners

#14 x 1-3/4 Elco Crete-Flex / Hex Washer Head / 410 Stainless / Stalgard Bi-Flex structural screws are bi-metalDeWALT SKU DFM44EMF330 The Crete Flex anchor is a 410 stainless steel screw anchor for light to medium duty applications in concrete and masonry block base materials. Crete Flex anchors feature a Stalgard coating and provide enhanced corrosion resistance over carbon steel fasteners.