1/4-20 x 4 Elco Dril-Flex / Phillips / Flat Head / Steel / Stalgard / QTY 500 8X1 5/8 Phillips Modified Truss

8X1 5/8 Phillips Modified Truss Head Fine Thread Drywall Screw Fully Threaded Zinc

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

8X2 Phillips Modified Truss Head Fine Thread Drywall Screw Fully Threaded Zinc

6-18X1 1/4 Phillips Bugle Head Fine Thread Drywall Screw Black Phosphate

6X1 1/4 Phillips Recess Bugle Head Coarse Thread Drywall Screw Particle Board Zinc

1/4-20 x 4 Elco Dril-Flex / Phillips / Flat Head / Steel / Stalgard / QTY 500 8X1 5/8 Phillips Modified TrussDril 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,