... 3.nickel plated 4.flat head,pan ,countersunk head truss head machine screw1.screw size,M1.6-M102.SS304 SS316,etc3.nickel plated 4.flat head,pan head,countersunk head5 ... PCS6.Products detailsProducttruss head machine screwMaterialStailess steel SS304 SS316 SS430,carbon steel, alloy steel,copper,brassFinishPassivation,Chromium-Plating,Black Oxide, Zinc-Plating,HDGSizeM1.6 ...