This Specbolt 250 piece kit will save you many trips to the dealership for that special OE fastener needed for your Yamaha YFZ 450 ATV. Your Bolt Kit will include just the right amount of factory match flange bolts, flange nuts, socket head body bolts, full set of lug nuts for all 4 wheels, lock nuts, sealing washers, fender washers, plastic push rivets, wide head Phillips screws, and more. Most everything you need to perform basic maintenance and upkeep to your Quad. Assortment of bolts used for plastic, fenders, bodywork, engine, frame, seat, fuel tank, controls, carburetor, exhaust, pipe, silencer, radiators, handlebars, swing-arm components, skid plates, bumpers and more. These fasteners meet or exceed quality standards of your machine's originals. A perfect addition to the racer's tool kit and a must have for the do-it-yourself mechanics.