name:self-tapping screws. size:self-tapping screw nickle pan head (-) self-tapping screw zinc pan head (+).

name:self-tapping screw.size:self-tapping screw nickle pan head (-)       self-tapping screw zinc pan head (+)

      4.8*13

      4.8*16

      4.8*19

      4.8*25

      4.8*32

      4.8*38

      4.8*50

      4.8*60

self-tapping screw