Factory Diret Sale Hexgon Flange Bolt DIN6921 Made in China. We’ve been a professional supplier of Hexgon Flange Bolt DIN6921 for many years. We produce non-standard hardware by ourselves, at same time we supply all kinds of stardard fastener incl. nuts, screws, bolts, washers, pins, rivets etc. with high quality, fast delivery and competitive prices.