Yamaha hardware has always been a little different with oval bushings and oversized flanges on some bolts. We have you covered with the YZ/YZF Pro-Pack. This kit contains 190 pieces of OEM style hardware in factory style & finish including: factory style aluminium bushing for the bodywork shroud bolts seat bolts sub-frame bolts fork guard bolts rotor bolts a full set of sprocket bolts t-nuts rim lock spacers valve stem grommets & caps chain adjuster screws Fuji lock nuts pan head screws M8 and M6 flange bolts and drain plug washers. Fits: Yamaha YZ250 2000-2008 2011-2015 2017-2020