5/8-11 x 1-1/2 Elco Tap-Flex / Hex Washer Head / Steel / Stalgard (200ct) High-hardness point and lead threads

High-hardness point and lead threads for drilling and tapping

8X1 Phillips Modified Truss Head Fine Thread Drywall Screw Fully Threaded Zinc

8X3 Phillips Recess Bugle Head Coarse Thread Drywall Screw Particle Board Zinc

Made In USA

5/8-11 x 1-1/2 Elco Tap-Flex / Hex Washer Head / Steel / Stalgard (200ct) High-hardness point and lead threadsTap 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