5/8-11 x 4 Elco Tap-Flex / Hex Washer Head / Steel / Stalgard (100ct) DeWALT SKU-DFM4EUH315-The UltraCon SS4 anchor

DeWALT SKU-DFM4EUH315-The UltraCon SS4 anchor is a 410 stainless steel screw anchor for light to medium duty applications in concrete and masonry block base materials

Wood-to-steel connections

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

Bi-Flex screws are suitable for use in both steel and aluminum

DeWALT SKU-DFM4EMF470-The Crete-Flex anchor is a 410 stainless steel screw anchor for light to medium duty applications in concrete and masonry block base materials

5/8-11 x 4 Elco Tap-Flex / Hex Washer Head / Steel / Stalgard (100ct) DeWALT SKU-DFM4EUH315-The UltraCon SS4 anchorTap Flex Thread Forming Structural Screws are thread forming, dual heat treated self tapping fasteners that provide the strength, ductlity, and resistance to embrittlement failures required in critical curtain wall and dissimilar metal applications. Tap Flex fasteners are designed to offer a replacement option for traditional nut and bolt assemblies. These fasteners provide an excellent solution for blind connections. The patented E Form segmented