1/4-20 x 1-1/2 Elco Bi-Flex / Hex Washer Head / 18-8 Stainless / Stalgard / QTY 1000 3/16" x 2-1/4" DeWALT blue

3/16" x 2-1/4" DeWALT blue concrete screws

Crete-Flex® Phillips Flat (Trim) #14 X 2-1/4 410 Stainless

Fire sprinkler pipes

8-15X1 Phillips Bugle Head Fine Thread Drywall Screw Black Phosphate

1/4-20 x 1-1/2 Elco Bi-Flex / Hex Washer Head / 18-8 Stainless / Stalgard / QTY 1000 3/16" x 2-1/4" DeWALT blueBi 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. Bi Flex screws are suitable for use in both steel and aluminum. Features & Specs High strength, ductility and reliability Higher corrosion resistance compared with carbon steel and 410 series stainless steel fasteners 18 8 stainless compatible with pressure treated lumber Immune to