1/4-20 x 4 Elco Bi-Flex / Hex Washer Head / 18-8 Stainless / Stalgard / QTY 500 Brand part # DFM12735

Brand part # DFM12735

Brand part # DFM12770

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

6X3/4 Phillips Bugle Head Coarse Thread Drywall Screw Black Phosphate Particle Board

Solar panel systems

1/4-20 x 4 Elco Bi-Flex / Hex Washer Head / 18-8 Stainless / Stalgard / QTY 500 Brand part # DFM12735Bi 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