1/4-20 x 1-1/8 Elco Dril-Flex / Hex Washer Head / Steel / Stalgard / QTY 2500 Tested in accordance with ICC-ES

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

Eliminates thread-tapping operations and allows for blind installations (e

6-18X1 Phillips Bugle Head Fine Thread Drywall Screw Black Phosphate

8X1 1/4 Phillips Bugle Head Coarse Thread Drywall Screw Black Phosphate Particle Board

1/4-20 x 1-1/8 Elco Dril-Flex / Hex Washer Head / Steel / Stalgard / QTY 2500 Tested in accordance with ICC-ESDril Flex Structural Screws are dual heat treated self drilling tapping screws that provide the strength, ductility and resistance to embrittlement required for critical applications. Features & Specs High hardness point and lead threads for drilling and tapping Stalgard and Stalgard SUB Coatings provide improved corrosion resistance as well as enhanced galvanic compatibility in dissimilar metal applications, including those involving aluminum,