The nuts supplied are small and seem inadequate in many cases. I wouldn't order them again, although they'll probably go with anything that doesn't require significant levels of stress, vibration, or other forces.
π© M6 1.0 Stainless Steel Flanged Hexagon Flange
8 Review
π Carriage Prime Line Products GD52103
6 Review
πͺ Strong and Versatile: National Hardware N222 406 Square Bolts for Secure Fastening
7 Review
π© 5-Pack of M8x60mm Stainless Steel External Hex Expansion Bolts by Yasorn
10 Review