1/4-20 x 4 Elco Bi-Flex / Hex Washer Head / 18-8 Stainless / Stalgard / QTY 500 10X3 1/2 Phillips Recess Bugle

10X3 1/2 Phillips Recess Bugle Head Coarse Thread Drywall Screw Zinc Yellow

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

8-18X1 5/8 Phillips Bugle Head Full Thread Self Drilling Drywall Screw Zinc and Bake

Serrations on underside of hex washer head lock against the fixture

8-15X2 1/2 Phillips Bugle Head Fine Thread Drywall Screw Black Phosphate

1/4-20 x 4 Elco Bi-Flex / Hex Washer Head / 18-8 Stainless / Stalgard / QTY 500 10X3 1/2 Phillips Recess BugleBi 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