I got fed up with always having to drive to the local Kragen’s and buying fasteners on an individual/per-job basis. Each little packet of bolts they sell is super overpriced, and over time, it adds up. To save time and money in the long-run, I stocked up with 800 pieces of zinc plates bolts, nuts, and washers in metric sizing.
These are all grade 8.8 metric, which is equivalent to SAE grade 5.