... polisheddelivery time15-35 dayspackingin wooden packing or on requestName: titanium standard partsBrand : mxcModel number:mxc2011Material: GR1 GR2 GR3 ... Square thread (90 degrees): Power TransmissionHead CodeFlate,Oval,Round,Pan,Truss,Hex,etc.Drive codeA:Slotted(Minus)B: ... way etc.Difference: a, Titanium bolt for the chemical aspects,PCBequipment,electrodes. b, Titanium alloy used in Bicycle,Motorcycles ...