6-20X2 1/4 Square Recess Flat Trim Head Self Drilling Screw Full Thread Zinc (Pack Qty 3,000) BC-0636KQFT

Ideal for attaching base board or trim through one or two layers of drywall to 12 - 20 gauge metal studs: AISI 1016 - 1022 or equivalent steel Screws shall be quenched in liquid and then tempered by reheating to 625°F minimum