Can I buy missing hardware from a train table at Lowe's?

[Sunshine Swirl]

We bought the activity/ train table used, so no idea who the manufacturer is. We just moved and somewhere along the way, we are missing 4 specialty (specifically to this table, not regular) screws and 2 nuts (? the things the screws screw into, or is that a bolt, no clue). Just hoping we can buy it at any home improvement store so that out kids have their activity table again and we can finish unpacking boxes!! Thank you!