StarTech.com M5 Cage Nuts - 100 Pack, Black - M5 Mounting Cage Nuts for Server Rack & Cabinet (CABCAGENUT2B) - Burmøtrik - sort (pakke med 100) - for P/N: RACK-18U-20-WALL-OA, RACK-21U-20-WALL-OA, RACK-24U-20-WALL-OA, RK3236BKF, WALLMOUNT4