We are the manufacturer of many kinds of fastener, including stainless steel machine screws, self tapping screws, bolts, and nuts, washers, threaded studs etc. All of our products are fully conform to the standard of GB, DIN, ANSI, BS, JISA and ISO. The mainly material is 304, we can also produce nonstandard products according to your requirement and design since we own the professional equipments. Diamond Quality, Close Future is our principle. Welcome to inquiry, we can quote you a competitive priceï¼