Middle Atlantic Legrand-middle Atlantic RCK Accories PR 4SP 7 RCK Rail - RRF4

Middle Atlantic RRF4 4U 10-32 Threaded Rack Rail

Overview

The Middle Atlantic RRF4 is a 4-rack-unit, 10-32 threaded rail designed as a replacement or supplemental mounting component for standard 19-inch rack enclosures. At just 7 inches tall and 0.68 inches wide, the RRF4 slots into the vertical rail channel of compatible rack enclosures and accessories without adding bulk to an already-tight equipment bay. It ships as a single unit (Package Qty: 1), making it straightforward to replace a damaged rail, complete an asymmetric build, or add mounting positions to an existing frame.

For integrators managing multi-rack deployments — security head-end rooms, IT closets, or AV equipment racks — having a verified replacement rail on hand avoids the kind of downtime that comes from waiting on a full rack assembly. The RRF4's 10-32 thread pattern is the dominant standard across rackmount security equipment, network gear, and AV hardware, so it fits natively with the vast majority of 1U–4U equipment you're likely already deploying.

Middle Atlantic is a Legrand AV brand with a long track record in commercial rackmount infrastructure — browse the full Middle Atlantic rack and enclosure line for compatible frames, panels, and cable management.

Key Features

• 4 Rack Units (7 in / 17.8 cm height): Covers four standard rack spaces in a single rail section — enough vertical span for a typical 1U–4U appliance like a network video recorder or network switch, without overlapping neighboring equipment mounted above or below.
• 10-32 Thread Pattern: The 10-32 standard is universal across commercial rackmount hardware — servers, switches, NVRs, patch panels, KVM units. No thread adapters, no cage nuts required for most modern equipment, which keeps installs clean and reduces fastener inventory.
• 0.68 in (1.7 cm) Width: Narrow profile means it seats properly within the standard vertical rail channel without interfering with adjacent rails or cable routing paths along the rack uprights.
• 1.53 in (3.9 cm) Depth: Shallow enough to clear typical rack-mount ear geometries, reducing the chance of interference with equipment flanges in densely loaded enclosures.
• Black E-Coat Finish: Electro-coat paint provides uniform corrosion resistance across all surfaces including threaded holes — relevant in equipment rooms with variable humidity or light condensation near HVAC returns.
• Shipping Weight 1 lb (0.5 kg): The low mass confirms this is a single-piece component — easy to keep as a spare without dedicating meaningful shelf space in a vehicle or storeroom.

Integration & Compatibility

The RRF4 is designed for use with Middle Atlantic rack frames that accept standard replacement vertical rails. The 10-32 thread pattern is compatible with the overwhelming majority of 19-inch rackmount equipment used in security surveillance infrastructure, IT networking, and AV integration — including 1U NVRs, managed PoE switches, fiber patch panels, and blanking panels. Verify your existing rack frame accepts field-replaceable rails before ordering, as some welded or fixed-rail enclosures do not support this replacement approach. Middle Atlantic's product line includes matching rail pairs, rack frames, and enclosure accessories that share this hardware specification.

What's in the Box

• 1x Middle Atlantic RRF4 4U 10-32 Rack Rail

Frequently Asked Questions

Q: What thread standard does the RRF4 use?

A: The RRF4 uses a 10-32 thread pattern, which is the standard for most commercial 19-inch rackmount equipment including NVRs, network switches, patch panels, and AV gear.

Q: How many rack units does the RRF4 span?

A: The RRF4 covers 4 rack units (4 RU), measuring 7 inches (17.8 cm) in height.

Q: Does the RRF4 require cage nuts?

A: No. The RRF4 has threaded 10-32 holes, so most modern rackmount equipment with standard 10-32 screws mounts directly without cage nuts.

Q: What is the finish on the RRF4?

A: The RRF4 features a Black E-Coat (electro-coat) finish, which provides corrosion resistance across all surfaces including the threaded holes.

Q: Is the RRF4 sold as a single rail or a pair?

A: The RRF4 is sold individually — Package Qty is 1. Order in pairs if you need to replace or add both left and right rails.

Q: What are the physical dimensions of the RRF4?

A: Height 7 in (17.8 cm), Width 0.68 in (1.7 cm), Depth 1.53 in (3.9 cm). Shipping weight is 1 lb (0.5 kg).