Generac 0H0412 U-Clip Nut M6-1.0. These are sometimes used on older units where the body panels are stripped out (didn't have a nut and the fastener was just threaded into the panel) and will allow the hardware to re-engage the enclosure body panel again. Commonly found on liquid cooled body panels. Generac replacement parts will also usually fit the following Generac branded generators: Honeywell, Guardian, Siemens, Carrier, Watchdog, Centurion, Eaton & Bryant. If you need Generac generator troubleshooting support, please visit our interactive forum