5/8-11 x 2 Elco Tap-Flex / Hex Washer Head / Steel / Stalgard (150ct) Blue plastic ring acts as

Blue plastic ring acts as insert locator when forms are removed

8-18X2 5/8 Phillips Bugle Head Full Thread Self Drilling Drywall Screw Zinc and Bake

9X1 Phillips Bugle Head Coarse Thread Drywall Screw Black Phosphate Particle Board

Crete-Flex® Phillips Flat (Trim) #14 X 2-1/4 410 Stainless

have a large flanged head

5/8-11 x 2 Elco Tap-Flex / Hex Washer Head / Steel / Stalgard (150ct) Blue plastic ring acts asTap 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