1.Diameter:2.1,2.3,2.5,2.8,3.1mm 2.Shank:smooth,ring,screw 3.Material:Q235 4.Finish:VC ... this product, please feel free to contact with me. Welcome to chat with me on line by Tradermanger and Skype(lida8807 ... 043/4"120*607.20Smooth,Ring,ScrewVinyl,EG,HDG3.047/8"120*607.20Smooth,Ring,ScrewVinyl,EG,HDG3.041"120* ... 607.20Smooth,Ring,Screw Vinyl,EG,HDG 3.041-1/2"120*607.20Smooth,Ring,Screw Vinyl,EG,HDG3.041- ...