12-24 x 1-3/4 Elco Dril-Flex / Hex Washer Head / Steel / Stalgard / QTY 2500 6-18X1 3/8 Phillips Bugle Head

6-18X1 3/8 Phillips Bugle Head Fine Thread Drywall Screw Black Phosphate

Plastic ring creates countersunk recess to keep threads clean from pour residue

6X1 1/2 Phillips Recess Bugle Head Coarse Thread Drywall Screw Zinc Yellow

8-15X2 1/2 Phillips Bugle Head Fine Thread Drywall Screw Black Phosphate

12-24 x 1-3/4 Elco Dril-Flex / Hex Washer Head / Steel / Stalgard / QTY 2500 6-18X1 3/8 Phillips Bugle HeadDril 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,