I bought a pair of bed boxes from a forum member a few weeks ago - fantastic deal. Since then, I have ordered two recodable locks from Nissan, but they are on back order. I plan on installing the boxes next weekend, and will continue to follow up on recoding the locks. However, my question pertains to rivnuts. The installation involves use of 2X M8 and 2X M6 rivnuts into each bed side. I am reviewing the following M6 and M8 rivnuts and would appreciate some feedback on suitability from folks who have installed the accessory bed boxes on their Titans. I don't have direct experience using rivnuts, but it is not a complicated issue for me.