Nat hex keluli karbon keluli tahan karat, nat hex loyang M1.7 M2 M2.5 M4 M5 M6 10 M12 M20, nat hex loyang, nat hex tergalvani, nat hex luar, nat hex bercap, nat hex dalam, nat hex keluli tahan karat, nilon nat hex, nat hex keluli karbon, nat hex M4, nat hex loyang H59.