Specify OE fasteners for two reasons; quality and original appearance.
Keeping the machine to the original factory specification will help maintain higher a residual value, more than covering the extra amount that a correct specification, OE bolt costs to buy.
Other OE and high quality none OE parts are available for your model. See what else you may need now or in the future?
Make sure you order all the parts required at the same time and save money by combining shipping costs