What are the square holes in a network cabinet in millimeters

Rack Rail Square Holes (Z-Series)

Made of 2.5mm thickness steel with 3/8″ square holes on the front and side for equipment mounting and .276″ diameter holes used for mounting into a cabinet, case, or custom enclosure.

Rack specifications

The rack or cabinet must have sufficient horizontal width clearance in the front and rear to allow the drawer to be fully slid into the front and, if applicable, the rear service access positions (typically this

6U Wall Mount Rack Cabinet for Network Switches, Lockable | Eaton

Front and rear vertical rails with square mounting holes accept standard rack equipment up to 16.5 inches (419 millimeters) deep, such as network switches, routers and patch panels.

Rack Mount Positions and Hole Types

Rack cabinets that meet EIA-310 standards have an alternating pattern of three holes per rack unit. For the front and back vertical rails, the center-to-center hole spacing begins at the top hole

Rack Mounting FAQ

Rack mouting rails (vertical "mounting flanges") may have square unthreaded holes (9.5mm x 9.5mm), round threaded (tapped) holes or unthreaded round holes (clearance holes).

Rack Measurements – Tech On The Field

The horizontal spacing of the vertical rows of holes is specified at 18 5/16″ or 18.312” (465.1 mm). Unlike the vertical spacing, this dimension is not well maintained on some racks, causing problems with

Racking Spec Layout for Enclosure Racks & Racking Cabinets

The horizontal spacing of the vertical rows of holes is specified by EIA-310 at 18 5/16″ (18.312) (465.1 mm). This dimension is not well maintained on some racks, causing problems with equipment

19 Inch Rack

The rails have holes in them at regular intervals, with both rails matching, so that each hole is part of a horizontal pair with a centre-to-centre distance of 18.3 inches (465 mm).

SmartRack 18U Mid-Depth Half-Height Rack Enclosure Cabinet

Front and rear vertical rails with square mounting holes accept standard rack equipment up to 32.5 inches (826 millimeters) deep. The top and bottom panels support installation of standard user

Rack Holes: Threaded Holes vs Square Rack Holes

The standard cage nuts work with the standard square rack holes. However, different cage nuts have different threads with most common variations being M5, M6, 10-32, and 12-24.

Frequently Asked Questions

Need Industrial Ethernet Switches, PoE Switches or SD-WAN Appliances?

Prospettiva Cyber Systems delivers end-to-end network infrastructure: managed industrial switches, fiber routers, next-gen firewalls, and data center racks. Request a quote with your project specs – we serve Europe, Africa, and beyond.