In order to fix some 19″ equipment into a 19″ frame, you have to put cage nuts M6 or M5 in the 9 mm. square holes
of the 19″ frame and then fix the equipment with M6 ornament screws with black plastic washers M6 or M5.
Cage Nuts & Screws
Cagenut Mount tool
€ 7,04 excl. VAT& Free Shipping