... furniture fittings 1) Composed of plastic outer shelf and zinc alloy matching screw 2) Finished with white, grey, black ... can be ordered too 3) Used in supporting shelf, no ... need to equip insert nuts, screw can be drilled directly 4) Matching screw have 2 ... for 20.5mm, short for 15.7mm 2 styles: machine teeth, self-tapping teeth Flat ...