We have profuse designs with series quality grade, and expressly, our price is very competitive because we are manufactory, we are the source. We mainly produce :DIN 933, DIN 931 Bolt DIN 934 Nut Hex Head Expansion AnchorDIN 975 Threaded RodDIN 125, DIN127, DIN9021 Washer hex bolts for high-speed rail ,hex bolts for subway,hex bolts for towel crane,grade 8.8,grade 10.9,grade12.9 oversize and hex bolts,nuts,The new quick detachable wall brace tie rods and so on. We can customize all kinds of special fasteners. WeChat NO.:15533100053