PROWRK-RR37 Extra Rail Kit, Cage Nut 37U

Add the convenience of cage nut style mounting to your Middle Atlantic WRK series enclosure. Cage nut rails feature an industry standard 3/8" square hole mounting design often found on telecom severs and equipment. These rails conveniently mount inside the standard WRK series enclosures from Middle Atlantic. Standard sizes up to 44-rack space are available. Cage nuts are sold separately.