1/4-14X2 1/2 6 Lobe Modified Truss head Self Drilling Screw Full Thread Zinc (Pack Qty 800) BC-1440KTM

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