I used the same size Unichrome screw up to now. The price per unit was 30 yen and the unit price was 15 yen. I found this item in search of the site whether there is more bag (box) packing. The color tone will be bronze color due to chromate, but 1 unit price 9 yen is quite profitable. I think that it will be lost soon though it enters 200 pieces, so it seems that this product will be repeated for the time being.