Dear Sir/Madam, We are an importing company based in United States of America. We have found your HVAZI 175PCS Metric M3 M4 M5 M6 M8 M10 Mixed Zinc Plated Carbon Steel Rivet Nut Threaded Insert Nutsert Assortment Kit from eworldtrade site. We kindly ask you to send us the informations about the product of the followings specifications: Size, Model Number, Screw Head Type, What is the product-per-unit cost including shipping via Air Express to the United States of America? We would be very grateful if you would contact us. With Regards TomokoSuzuki No Company Name Show More