This Avantco 36010023 nut is a direct replacement for the one that came on the sneeze guard of your Avantco refrigerated prep rail. It can also be used to install a sneeze guard on your unit or to replace the nut that came with your sneeze guard hardware set. Use it to replace a worn or broken part to keep your unit operating efficiently. It's compatible with Avantco sneeze guards on CPT and SS-PPT series refrigerated prep rails.