Rainbow color titanium bolt1.Material:titanium Gr2 or Gr52.Size:M3~M303.color:black,green,purple,blue,golden,rainbow.3.Application:industry,motorcar,motorcycle,bicycle.4.Technique:rolled thread ,CNC MachiningIf you need,contact me for detailsInspection: For precision measuring we would recommend the use of Digital Vernier Callipers and a Thread Gauge to measure thread pitch.Products Types1.Head Type:Round,Pan,Hex,Flat,Button,Truss,Oval,Binding,Chese,Fillister,etc.2.Drive type: Slotted, Hex, Allen, Torx, Spline Drive, etc  Mechanical information about our Titanium alloy bolts1.Tensile strength : Heat treated to 950Mpa~1000Mpa2.Yield strength : 870Mpa~925Mpa(126,000psi~134,000psi)3.Hardness : 30 HRC-40HRC4.Shear strength : 500Mpa~550Mpa5.Elongation : 14%~18%6.Working temp : Up to 500°C7.Grade:Class8.8 ,Class10.9,Class 12.9 Professional as one of the leading rainbow coclor titanium bolt manufacturers, Titanium Industry is also well-known among those credible such suppliers in China. Equipped with a productive factory, we welcome you to purchase quality products. Come and contact our company now!