mounting problems

The material is medium bill, neither more nor less. Nothing fancy at this price, but no rip either, this bench will fill a practicing beginner or intermediate.
Instead, unpacking, several surprises. The manual is very clear, but especially includes mistakes in French, where part numbers are wrong in the assembly instructions.
In addition, security nuts my copy were all too small compared with the hardware provided. As a result, I had to buy my nuts DIY store on the corner. Not very satisfying!
Delivery level, no complaints, it's Amazon :-)