Posted by a reviewer on Amazon

Had bought one from menards of the same size and it was a very cheap metal and poor workmanship

Posted by a reviewer on Amazon

But in fact there are 16 special screws for attaching the casters that do not require a washer

Posted by a reviewer on Amazon

All hardware was included 16 hex flange head 6mm bolts for mounting casters 24 phillips head 6mm screws for attaching shelves 24 6mm nuts used on shelf screws 40 lock 6mm washers 24 flat 6mm washers not used

Posted by a reviewer on Amazon

I did not use any of the included flat washers because the diameter was too small for the size of slotted holes in casters and cabinet parts

Posted by a reviewer on Amazon

Using larger diameter flat washers on caster mounting and slightly larger diameter flat washers on cabinet assembly made for a goodstrong cabinet assembly

Posted by a reviewer on Amazon

My flat washer cost was about 6

Posted by a reviewer on Amazon

I had to look for washers with a close to 6mm hole size and larger diameter ace hardware had a variety of flat washers with close to 67mm hole size

Posted by a reviewer on Amazon

My only con on this review is the flat washers included they have a 6mm hole with a very small diameter look almost like a ring and would not cover screw holes