CablesOnline 50 Piece Server Rack & Cabinet M6 Cage Nuts & Mounting Screws (RR-H50B) Package includes 50 cage nuts and screws Type: M6 ; Zinc-plated construction ensures durability Square cage nut design for racks and cabinets with square holes Mount standard rack mountable equipment into a server rack or cabinet Nuts, screws, and washers all included