#12 x 1 Elco Dril-Flex / Phillips / Flat Head / Steel / Stalgard / QTY 4000 8X3 Phillips Recess Bugle Head

8X3 Phillips Recess Bugle Head Coarse Thread Drywall Screw Zinc Yellow

8-15X3 Square Drive Trim Head Drywall Screw Fine Thread Black Phosphate

Water pipes (plumbing)

10X1 5/8 Phillips Bugle Head Coarse Thread Drywall Screw Black Phosphate Particle Board

6-20X1 7/8 Phillips Bugle Head Full Thread Self Drilling Drywall Screw Zinc and Bake

#12 x 1 Elco Dril-Flex / Phillips / Flat Head / Steel / Stalgard / QTY 4000 8X3 Phillips Recess 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,