Features: 1.Replacement for Yamaha YZ YZF, replacement for Kawasaki KX KXF, replacement for Suzuki RM RMZ, and replacement for CR CRF. 2.Bolts and nuts are heavily heat treated, grade 10.9 bolts resist breakage and stretching force (Standard bolts are 8.8). 3.Make use of premium aluminium alloy, with nickel?plated finishing process, corrosion resistant and durable in use. 4.Each pinion bolt has pre?coated medium?strength thread lock patches, liquefy and seal anaerobically when tightened for double locking. 5.Easy to install, can be tightened with 10mm hex wrench (not included) and 12mm wrench (not included). Specification: Item Type: Sprocket Bolt Kit_x000D_ Material: Aluminium Alloy + Nickel Plated_x000D_ Thread Diameter: Approx. 8mm/0.31in_x000D_ Thread Length: Approx. 32mm/1.26in_x000D_ Fitment: _x000D_ Replacement for Yamaha YZ YZF_x000D_ Replacement for Kawasaki KX KXF_x000D_ Replacement for Suzuki RM RMZ_x000D_ Replacement for CR CRF PackageList: 6 x Bolts 6 x Nuts