Hammond H1SRR20U24BK 20U Square-Hole Rack Rail Pair for 24" Cabinets

The H1SRR20U24BK is a matched pair of 19-inch square-hole mounting rack rails providing 20U of usable mounting space in 24.00 in (610 mm) wide cabinets. It is intended for IT, telecommunications, industrial and AV users who need to replace damaged rails in an existing H1, HWF, RCK or NWC cabinet, add extra mounting positions, or convert a cabinet from threaded to square-hole mounting without replacing the enclosure itself.

Each rail is formed from heavy-duty 12-gauge mild steel and finished in a textured black powder coat, giving a rigid mounting platform for rack-mounted servers, network equipment, AV systems and industrial electronics. The square holes follow typical EIA-310 spacing (0.38 in square), so the rails accept cage nuts and standard 19-inch rack hardware, and silkscreened 1U markings make equipment alignment and future expansion straightforward.

Usable mounting height for this 20U version is 35.00 in (889 mm); the drawing shows an overall rail length of 35.03 in (890 mm) with a 33.44 in (849 mm) front-view dimension and a rail profile of 2.00 in (51 mm) by 1.39 in (35 mm), with 2X 0.44 x 0.75 in slots for strut attachment. All required strut mounting hardware is included, and the rails ship as a pair for a complete cabinet installation.

H1SRR20U24BK is manufactured in Canada in an ISO 9001 certified facility and is TAA-compliant, USMCA-compliant, RoHS-compliant and REACH-compliant, with a shipping weight of 6 lbs (2.72 kg). Buyers who prefer 10-32 threaded mounting in the same size can specify the H1TRR20U24BK equivalent.