8-18X1 Square Recess Modified Truss Head Self Drilling Screw Full Thread Zinc (Pack Qty 4,000) BC-0816KQM

Common usage is to attach wire or metal lathe to metal studs of a thickness between 12 - 20 gauge. The head design offers low clearance and an extra large bearing surface AISI 1016 - 1022 or equivalent steel Screws shall be quenched in liquid and then tempered by reheating to 625°F minimum