StarTech.com M5 x 12mm Screws and Cage Nuts - 100 Pack - M5 Mounting Screws and Cage Nuts for Server Rack and Cabinet - Black (CABSCREWM52B) - Telineen ruuvit ja mutterit - musta malleihin P/N: RACK-18U-20-WALL-OA, RACK-21U-20-WALL-OA, RACK-24U-20-WALL-OA, RK12OD2, RK3236BKF