Material:Carbon Steel,stainless steel, Type:Hexagon Head Connection: Common Bolt Head Style: Hexagonal Standard:ASTM Grade:A325 Type 1, A490 Type 1 Application:Machinery Finish: Plain, Black, Zinc Plated, Yellow Zinc Plated, H.D.G, M.G, Dacromet, PTFE Xylan, etc. Package:28*28*12cm&27*25*14.5cm&29*21.5*15cm Specification:ISO9001: 2000&GB/T19001-2000&ISO9001: 2008 Trademark:On-demand customization Origin:Ningbo, Zhejiang Length of Thread:Full Thread or Half Thread Grade/Class:A325 Type 1, A490 Type 1 HS Code:7318150000