3/16 x 3-1/4 Elco UltraCon / Slotted / Hex Washer Head / Steel / Stalgard dual heat treated self-tapping fasteners

dual heat treated self-tapping fasteners that provide the strength

Shear testing conducted in accordance with AISI S905 using the standard lap joint shear test (with adjustments to allow for large fastener diameters)

Code compliant with the International Building Code/International Residential Code: 2021 IBC/IRC

6X1 3/4 Phillips Bugle Head Coarse Thread Drywall Screw Black Phosphate Particle Board

8-18X2 Phillips Bugle Head Full Thread Self Drilling Drywall Screw Zinc and Bake

3/16 x 3-1/4 Elco UltraCon / Slotted / Hex Washer Head / Steel / Stalgard dual heat treated self-tapping fasteners3 16" x 3 1 4" DeWALT blue concrete screws, Elco UltraCon. Brand part # DFM12708.