M5x20mm Seatpost Clamp Titanium Bolt Hardware Upgrade Kit for Bicycle Conversion. High-quality materials, exquisite craftsmanship, safe, reliable and durable, long service life, complete specifications, convenient and flexible use, and better cost performance. Upgrade your original fasteners with titanium bolts. They are ideal for a wide range of applications including motorcycles, bicycles, cars, karts, watercraft, RC models, industrial applications and more. Ultralight, high strength, ultra corrosion resistant. Precision machined from Grade 5 titanium alloy (TI6AL4V). Rolled threads for better fatigue strength and resistance to abrasion. Forged heads for precise tool matching and easy assembly/disassembly. Approximately 45% lighter than equivalent steel fasteners. Attractive polished finish that won’t fade or corrode. For components/parts: drivetrain, brakes, gears. Material: 6AL/4V Titanium Alloy(GR5). Surface Treatment: Surface PVD process, uniform color and bright color. Nut Length: 13.5mm. Bolt Size: M5 x 20mm. According to Your Choose. All products in our store are elaborately made. We care about our valued buyers, if you have any questions, our Customer Service staff will be very glad to help you. We try our best to reply to your emails as soon as possible, however, due to the high volume of daily incoming emails and time zone difference, we may not be able to reply to your emails immediately. Please contact me before you return it. Feedback is very important to us. For the functional products in our shop, we make sure that the functions are the same as the description. About the product colour:Because of the different light and environment when the product is photographed, In a few instances the colour of the product may have a little colour difference with the actual colour of the product, I hope you can understand.