#12 x 2-1/2 Elco Bi-Flex / Hex Washer Head / 18-8 Stainless / Stalgard / QTY 1000 10X1 Phillips Bugle Head Coarse

10X1 Phillips Bugle Head Coarse Thread Drywall Screw Black Phosphate Particle Board

including those involving aluminum

Material: 18-8 Stainless w/Black Oxide Finish

8-15X3 1/2 Phillips Bugle Head Fine Thread Drywall Screw Black Phosphate

Blue plastic ring acts as insert locator when forms are removed

#12 x 2-1/2 Elco Bi-Flex / Hex Washer Head / 18-8 Stainless / Stalgard / QTY 1000 10X1 Phillips Bugle Head CoarseBi 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