#12 x 1-1/2 Elco Dril-Flex / Hex Washer Head / Steel / Stalgard / QTY 2500 E-Form® thread profile overcomes friction

E-Form® thread profile overcomes friction build-up and reduces drive torque

All you need is the screw and the drill bit

Aluminum-to-aluminum connections

7-16-X2 Phillips Bugle Head Fine Thread Drywall Screw Black Phosphate

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#12 x 1-1/2 Elco Dril-Flex / Hex Washer Head / Steel / Stalgard / QTY 2500 E-Form® thread profile overcomes frictionDril 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,