| Surface Treatment | YZP |
Product Introduction
Standard Name: Cage Nut (Cage Nut / Spring Nut).
Common Names: Cabinet Nut, Server Nut, Spring Floating Nut.
Product Definition: A specialized fastener combining an external “cage” formed by spring steel plates with an internally floating square nut. Designed for press-fitting into standardized square/rectangular mounting holes in sheet metal equipment such as cabinets and enclosures. The nut can slide slightly within the cage to compensate for installation errors, enabling rapid, precise, and aligned equipment installation.
Key Features of YZP Cage Nut
Yellow Zinc Plated (YZP): Utilizes yellow chromate passivation, providing moderate corrosion
protection (superior to ordinary white zinc), with a golden-yellow surface that is aesthetically pleasing
and wear-resistant, suitable for indoor or slightly humid environments.
Cage Spring Design: A metal cage surrounds the nut, with an internal spring plate for easy lateral
insertion into the square-hole rack, automatic locking, and allows for fine-tuning.
Floating Nut Structure: The nut floats within the cage, compensating for hole misalignment when
aligning bolts, improving installation convenience.
Material and Specifications: Commonly made of carbon steel, internal threads M5, M6, M8, M10 or
10-32, 12-24, matching standard 19-inch rack square holes.
Advantages: Quick installation, vibration resistant, economical and aesthetically pleasing,
suitable for server racks.
Working Principle
Inserting into the Square Hole: Push the nut laterally into the rack square hole; the cage spring
compresses and rebounds, locking the nut at the edge of the hole and fixing its position.
Floating Adjustment: The nut can move slightly within the cage, aligning with the bolts to avoid
hole position errors.
Threaded Fit: The internal thread matches the bolt, generating axial clamping force through tightening.
Load and Protection: The cage frame evenly distributes pressure, and the yellow zinc plating provides
corrosion protection; the principle involves elastic locking and friction gripping.
Product Applications
Server Racks: Secure servers, switches, or panels for quick data center rack assembly.
Network Equipment: Install routers, firewalls, or patch panels, supporting frequent maintenance.
Telecommunications and Broadcasting: Secure server room cabinets; the yellow exterior enhances
a professional look.
Industrial Control Cabinets: Assemble control panels or instruments; economical and suitable for
indoor environments.
DIY and Maintenance: Rack-mounted equipment assembly; convenient and reliable.
