Cage nuts screw fastening with high strength role, with a special tool to put it into the square hole in advance, withdraw the tool to secure it in a metal or other sheet material, quick to install, convenient, removable from the new location, also tilt fixed and has the following advantages: 1, only from the side plate mounting, suitable for rail and track assembly; 2, with a high load capacity. Product casing material 65m (CN) stainless steel (CNS) are two nut material is carbon steel