H PotterGarden Scroll Trellis

Does the 67 inches include the spikes to hold it in the ground?

Can I get an extra set of screws for the set of two trellises? I lost mine. I’m happy to pay for them

Any tips on keeping bolts and nuts tight at junction of square piece and scroll piece? Trellis lists. Even pùrchased self locking nuts without success

What are the measurements?