Commodity: Titanium Hex Head RACE Spec Bolt Drilled Lock Wire Material: Grade 5(Ti-6AL-4V)-Aerospace Grade Standard: DIN6921 or Customized Sizes Specification: M3, M4, M5, M6, M7, M8, M10, M12, etc. (Coarse, Fine thread) #10, 1/4", 5/16", 3/8", 7/16",1/2", 5/8", etc. (UNC, UNF thread) Technical process: All Titanium bolts are made to exacting standards using the following procedures and specifications: 1,The Head is forged and then CNC machined. 2,The threads are rolled onto the bolt shaft to reduce stress raising areas caused by machined threads used on some bolts. 3,The finished part is shot peened and polished to give an attractive high quality finish. 4,Compliant with relevant standards, Deutsches Institut Fur Normung (DIN) with regard to shaft dimensions, thread and tolerances (note that the head height is reduced compared to a DIN standard bolt). Special characteristics: Titanium bilts & screws are best known for being strong, lightweight and corrosion resistant. One property that stands out when compared to other metal screws is that titanium screws have the highest strength-to-weight ratio with a density of 4.51 g /cm3. As an example, titanium grade 5 is 4 times stronger than 316 stainless steel at nearly half the weight. This makes titanium screws ideal for applications that require both lightness of weight and excellent strength such as oil & gas (down-hole), military and sporting goods. Application: Titanium bilts & screws have been used extensively by European bike and motorbike racers for many years. They will look great and add performance to you and your machine. Best-selling country: All of our products are mainly exported to Germany, Australia, American, United Kingdom, Japan, and many countries.