Hammond H1SRR48U24BK 48U Square-Hole Rack Rails for 24-Inch Cabinets

H1SRR48U24BK is a matched pair of 19-inch panel mounting rails with EIA square holes, supplied for use in H1, HWF, RCK and NWC cabinets that are 24.00 in (610 mm) wide. The rails give 48U of usable mounting space over a height of 84.00 in (2134 mm), making them a direct option for IT, telecommunications, industrial and AV teams who need to replace damaged rails, add extra mounting positions, or convert a cabinet from threaded to square-hole mounting without replacing the enclosure itself.

Construction is heavy-duty 12-gauge mild steel, providing a rigid mounting platform for rack-mounted servers, network switches, patch panels, UPS systems, AV components and industrial electronics. The rails are finished in painted thin film textured black, a RoHS compliant powder coat finish, and carry silkscreened 1U markings that simplify equipment alignment, installation planning and future expansion.

Square hole size is 0.38 in on typical EIA spacing, so the rails accept standard cage nuts and square-hole rack hardware used with 19-inch equipment. Each rail is punched with 4X 0.44 in diameter by 0.75 in slots for strut attachment, and all required strut mounting hardware is included. The drawing lists an overall rail height of 84.03 in (2134 mm) at 48U. If you prefer 10-32 threaded mounting in the same size, the equivalent part is H1TRR48U24BK.

H1SRR48U24BK is manufactured in North America (country of origin CA) in an ISO 9001 certified facility and is TAA compliant, USMCA compliant, RoHS compliant and REACH compliant, with ECCN EAR99. Rails are sold as a pair for a complete cabinet installation.