5/16-18 x 1-1/2 Elco Dril-Flex / Hex Washer Head / Steel / Stalgard / QTY 1000 The patented E-Form® segmented thread

The patented E-Form® segmented thread profile design improves installation and forms threads that provide increased thread engagement

8X2 Phillips Bugle Head Coarse Thread Drywall Screw Black Phosphate Particle Board

000 hours Salt Spray

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

5/16-18 x 1-1/2 Elco Dril-Flex / Hex Washer Head / Steel / Stalgard / QTY 1000 The patented E-Form® segmented threadDril 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,