... size,M1.6-M10 2.SS304 SS316,etc 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 ... Black Oxide, Zinc-Plating,HDGSizeM1.6-M10Lengthaccording to requirementhead typeFlat Oval Binding head Pan Round TrussFactoryNingBosimilar machine screw With a wide range ...