Expected spare parts. Very good quality as far as I can tell. A common problem when devices are shipped incomplete or missing. I had six pleasant conversations that left me with the missing hardware and no choice but to send them back and hope the next parts are ready or send them back and get my money back. I chose #3, keep what I have and spend more to finish it. Buy it for the quality but expect the full set to cost a little. The way things are these days. Just check the threads and how the packaging is always damaged and I left the threads protruding from the bottom of both boxes it was placed in.