5/8-11 x 4 Elco Tap-Flex / Hex Washer Head / Steel / Stalgard (100ct) Tested in accordance with ICC-ES

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

8X2 Phillips Modified Truss Head Fine Thread Drywall Screw Fully Threaded Zinc

Blue plastic ring acts as insert locator when forms are removed

Internal threads eliminate the need and cost of couplings

Tested in accordance with AISI S905 and ICC-ES AC500 for attaching Miscellaneous Building Materials to Steel

5/8-11 x 4 Elco Tap-Flex / Hex Washer Head / Steel / Stalgard (100ct) Tested in accordance with ICC-ESTap 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