Fasteners and bolts - brand generic - Gold 40mm screw-in fixed screw seatpost seat post Highlights brand generic Seat screw in gold 40mm fixed screw seatpost screw-in seatpost Description: Specially designed for fixing the bicycle stem, professional design, with a screw, will be easy to install. Made of titanium alloy, which is high strength, lightweight, wear resistant, corrosion resistant and durable. CNC precision processing, accurate and standard size. Precision thread, firm connection, not easy to fall off. There are several bolt sizes for your choice, which apply to different bike models. Rust prevention, light and small in size, easy and convenient to carry, bicycle DIY spare parts specification: Material: titanium Size: 30mm/1.18inch, 40mm/1.57inch Package includes: 1 pair of stem screws Note: Color may be slightly different due to the color calibration of each monitor. Please allow slight measurement deviation due to manual measurement.