Hammond C4PR77TZPL 44U 19-Inch 10-32 Tapped Rack Rail Pair

The C4PR77TZPL is a matched pair of 44U rack mount rails with 10-32 tapped mounting holes, engineered as replacement or expansion rails for Hammond C4, C4RR_S, C4RR_A, C4RR_D, and DCZ4 cabinet systems. It is intended for data center, telecommunications, and industrial users who need to replace damaged rails, add mounting positions, or convert a cabinet to threaded-hole mounting without changing cabinet platforms.

Threaded rails in this series are manufactured from 10-gauge steel for a rigid mounting platform for servers, switches, storage equipment, UPS systems, and other rack-mounted devices. The rails are mild steel with a zinc-plated finish that provides corrosion resistance while improving electrical grounding continuity through the cabinet. Silkscreened 1U markings run the full height of each rail to simplify equipment layout and future expansion.

C4PR77TZPL provides a 19.00 in (483 mm) EIA-310 mounting width with 10-32 tapped holes, an overall rail height of 77.00 in (1956 mm) equal to 44U, and is dimensioned for C4 cabinets of 30.00 in (762 mm) width. It is also compatible with DCZ4 cabinets. Rail options for 30-inch cabinets include integrated cable tie slots and cable pass-through openings to help route and organize cabling while preserving usable cabinet space.

The rails ship as a pair with the required strut mounting hardware included, for straightforward installation in an existing or new cabinet. Shipping weight is 30 lbs (13.61 kg). Manufactured in Canada, the part is RoHS and REACH compliant, USMCA compliant, and TAA-compliant for GSA Schedule purchases.