5/16-18 x 1 1/4 MACHINE SCREWS / Phillips / Flat Head / Steel / Black Oxide 7X3 Phillips Bugle Head Coarse

7X3 Phillips Bugle Head Coarse Thread Drywall Screw Black Phosphate Particle Board

Lower-hardness load bearing area provides increased resistance to Hydrogen-Assisted Stress Corrosion Cracking when compared to case hardened fasteners

Bi-Flex structural screws are bi-metal self-drilling tapping screws that provide the corrosion resistance of 300 series stainless steel and the efficiency of drill screws

An installation tool is also available to punch a hole through the metal deck for ease of installation

2018 IBC/IRC

5/16-18 x 1 1/4 MACHINE SCREWS / Phillips / Flat Head / Steel / Black Oxide 7X3 Phillips Bugle Head Coarse