1/4-20 x 3 Elco Bi-Flex / Phillips / Flat Head Undercut / 18-8 Stainless / Stalgard / QTY 500 punch hole through metal deck

punch hole through metal deck – insert blue banger hanger

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

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

8-15X2 1/4 Square Drive Trim Head Drywall Screw Fine Thread Black Phosphate

1/4-20 x 3 Elco Bi-Flex / Phillips / Flat Head Undercut / 18-8 Stainless / Stalgard / QTY 500 punch hole through metal deckBi 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