titanium standard parts titanium nuts/titanium bolts/titanium washer Material:Gr1/Gr2/Gr5/Gr7/Gr9 Standard:DIN,ISO 7380,etc 1.Specification Size:≥M2 ... strength,excellent corrosive resistance, rustless, no magnetic, good plasticity. 2.Standard: 1) Nuts: DIN555, DIN934, DIN985, DIN6923,etc 2)Bolts: DIN558 ...