truss head machine screw 1.screw size,M1.6-M10 2.SS304 SS316,etc 3 ... .flat head,pan ,countersunk head truss head machine screw1.screw size,M1.6-M102.SS304 SS316,etc3.nickel plated 4 ... to requirementhead typeFlat Oval Binding head Pan Round TrussFactoryNingBosimilar machine screw With a wide range, good quality, reasonable prices and stylish ... you have any question, please feel free to contact with us .