ITEM NAME:2Pc M5*16mm Rear Derailleur Wheel Bolt MTB Bike Guide Roller Bolt Screw Description Description: Perfect fit for bike rear derailleur guide wheel Small size, easy installation. Great ability to withstand high and low temperatures Made of high quality titanium alloy material, high strength and durability functions Suitable for SHIMANO M360 M430 M4000, but not fit for SHIMANO M310 High performance, the screws can be a replacement for the old one Specifications: Material: titanium alloy Color: silver Size: Thread diameter 5mm Full length 16mm M5 Package Included: 2 * Bike Guide Wheel Screw. Note: 1.Due to the manual measurement and different measurement methods, the actual size could be slightly different. 2.Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the website's photo and the actual item could be slightly different. High quality store for you! 2Pc M5*16mm Rear Derailleur Wheel Bolt MTB Bike Guide Roller Bolt Screw.Perfect fit for bike rear derailleur guide wheel. 2 Bike Guide Wheel Screw. We want to make sure you are happy with our item. Goods without RMA number will NOT be accepted. Small size, easy installation.