Specifications 1)sizes:m5-m20 1/4''-5/8'' length: 6mm-300mm 2)standard:din, unc/unf, bsw 3)grade/class:4.8 8.8 10.9 ss201 ss304 ss312 ss316 1)sizes:m5-m20 1/4''-5/8'' length: 6mm-300mm 2)standard:din, unc/unf, bsw 3)grade/class:4.8 8.8 10.9 ss201 ss304 ss312 ss316 Products name: u-bolt 1)size:m5-m20 1/4''-5/8'' length:3/8''-12'' 2)standard:din unc/unf bsw jis iso 3)grade:carbon steel:4.8 6.8 8.8 10.9 12.9 stainless steel:ss200 ss304 ss312 ss316 copper 4)finish:galvanized(zinc-plated) hdg mechanical plating dacromet My factory is professional manufacture in china.We supply(bolts, thread bar, wooden screw, anchor furniture screw, nuts, washer and non-standard parts) if you are interested in these products, pls don't hesitate to contact me.I am not only a sales man, but also a worker.So we may discuss about some professional knowleadge.Haiyan is also the family of fastener, we survive on quality and reputation.Sincerely look forward to cooperation with every country the world Haiyan high strength fastening parts co., ltd has grown rapidly over the last 23 years(since 1987) to become a reputable supplier of quality fastener.Our experience in making lathe-made and cold forging fastener has established us as a most reliable supplier of various types of fasteners. Today, our customer base has grown to sonsist of hundreds of both domestic china and foreign companies, including some renowned global corporate in their various of programs as an approved vendor. We are an import and export right with a twenty-five years old factories, the export rate of more than 85% Inner packing: carton cases outer packing: wooden cases or pallets