The importance of using the correct specification OE bolts can never be overstated.
Threads will be accurate, the grade of steel will be as it should be (not like cheese!) and the correct finish will be applied.
It would be unwise, to say the least, to use anything other than new OE parts!
You may wish to consider this similar Flange Bolt:
957010601207
Please make sure part numbers ordered are compatible with your model. Make sure you order all the parts required at the same time and save money by combining shipping costs.