Cetma Front Rack Clamp Part? I just bought a used Cetma front rack and I'm looking for these types of "clamps". I need the right diameter for BMX handlebars so 22.2mm I believe in diameter (7/8 inch). Does anyone know what they are called so I can't search for them online or ask for them in a hardware store? I kind of assume these are some kind of standard off the shelf parts I can get and not custom made by the guy who makes Cetma racks.
Found out those "clamps" are called conduit hangers:

https://www.homedepot.com/p/2-ACC-Conduit-Hanger-67820/202077114