5/8-11 x 5 Elco Tap-Flex / Hex Washer Head / Steel / Stalgard (50ct) 6-18X2 1/4 Phillips Bugle Head

6-18X2 1/4 Phillips Bugle Head Fine Thread Drywall Screw Black Phosphate

Tested in accordance with ICC-ES AC491 for use in Aluminum

Fire sprinkler pipes

3/16" x 3-3/4" DeWALT blue concrete screws

5/8-11 x 5 Elco Tap-Flex / Hex Washer Head / Steel / Stalgard (50ct) 6-18X2 1/4 Phillips Bugle HeadTap 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