1/4-20 X 7/8 Thread Cutting Screws / Unslotted / Hex Washer Head / Steel / Zinc / Type F 3/16" x 1 -1/4" DeWALT

3/16" x 1 -1/4" DeWALT blue concrete screws

Bi-Flex screws are suitable for use in both steel and aluminum

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-DFM3EMM360-The Aggre-Gator anchor is a Bi-Metal 300 series stainless screw anchor for light to medium duty applications in concrete and masonry block base materials

6-18X1 1/2 Phillips Bugle Head Fine Thread Drywall Screw Black Phosphate

1/4-20 X 7/8 Thread Cutting Screws / Unslotted / Hex Washer Head / Steel / Zinc / Type F 3/16" x 1 -1/4" DeWALT