TOPEX rivet nuts kit comes with the modern features for multi-purpose usage.This product is made with high -quality material with exterior zinc coated colour. It has flat head and knurled body. It comes with different size of rivet nuts, including M3, M4, M5, M6, M8, M10, M12, to meet your different requirements. This rivet nut kit is equipped with a box to store for those nuts. This box will be very convenient for use, suppose if anyone going out, he or she can carry in a very convenient way.