The SmartRack® SRCAGENUTS1224 is compatible with all square-hole rack enclosure cabinets. Square-hole hardware kit has 5 12-24 cage nuts and 5 bolts to fasten equipment to square-hole rack-mount rails. * Square hole hardware kit - 5 each 12-24 cage nuts and bolts * Fastens equipment to square hole rack mount rails * Compatible with all square hole racks (EIA 31D) https://elecena.pl/product/30593591/tripp-lite-srcagenuts1224-smartrack-square-hole-hardware-kit-with-50-pcs 2026-08-15 https://elecena.pl/product/30593591/tripp-lite-srcagenuts1224-smartrack-square-hole-hardware-kit-with-50-pcs 2026-09-08