1/4-20 x 4 Elco Bi-Flex / Hex Washer Head / 18-8 Stainless / Stalgard / QTY 500 1/4" x 2-1/4" DeWALT blue

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

Steel-to-steel connections

Serrations on underside of hex washer head lock against the fixture

The Steel Deck Inserts installed height of just 2 inches can be used through or between the ribs of the deck

8X3 Phillips Recess Bugle Head Coarse Thread Drywall Screw Particle Board Zinc

1/4-20 x 4 Elco Bi-Flex / Hex Washer Head / 18-8 Stainless / Stalgard / QTY 500 1/4" 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