Roof Rack Rail Nut is a direct fit for the following:

2008-2017 Buick Enclave
2006-2011 Chevrolet HHR
2009-2017 Chevrolet Traverse
2007-2016 GMC Acadia
2017 GMC Acadia Limited
2006-2008 Hummer H3
2007-2010 Saturn Outlook

Genuine GM Part Number: 11609292