Canadian Consulting Engineer

Rittal Adds IRU Cage Nut Assembly for Enclosures Saves Time, Requires No Tools

August 2, 2016
By Press release


Schaumburg, IL – July 26, 2016 – Rittal Corporation (, the world’s largest enclosure manufacturer and a leader in thermal management of electrical, electronic and IT equipment, has added a 19” Cage Nut Fastener for enclosures to its parts offerings.

This 1RU cage nut assembly is simple to install as an alternative to time consuming capture nuts. It consists of an innovative three-in-one expanding nut that is easily attached using the center nut for the square attachment hole, then secured by hand with the fastener screw. The tightened screws expand the cage nuts to secure the required components. Six cage nut assemblies can be installed in the time it takes to place two capture nuts. And it can be done without tools.

The Rittal Fastener assembly is manufactured from sheet steel with a zinc coating to ensure electrical grounding continuity throughout the structural members of racks and cabinets. Contacts are integrated for potential equalization. The cage nuts are durable and can be reused, moved and repositioned multiple times.

The Rittal Fastener Cage Nut is compatible with 19” enclosure rails that meet EIA 310 standards. Clamping size range is from 1.2 – 4.5 mm.  They are sold in packages of 24 fastener cage nuts assemblies.

For more information about 1RU cage nut assembly (PN 2090000) or to find a local distributor, visit

About Rittal
Rittal Corporation, headquartered in Schaumburg, Illinois, is the U.S. subsidiary of Rittal GmbH & Co. KG and manufactures the world’s leading industrial and IT enclosures, racks and accessories, including climate control and power management systems for industrial, data center, outdoor and hybrid applications. Rittal‘s off-the-shelf standard, modified standard and custom-engineered products are recognized throughout the world as innovative, high quality solutions for practically any industrial or IT infrastructure application — from single enclosures to comprehensive, mission critical systems. Learn more at


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