Hardware arrived for the slides. Love Bolt Depot's packaging. This was for one project so it wasn't as big a deal, but when I placed an earlier order with hardware for 4+ separate projects, it was so easy to separate everything and write on the bag the project name.
If those SS nyloks are for the SS screws, that is rarely a good idea. SS on SS galls way more than is pleasant when the drag of the locking element is introduced. If you want the SS fastener, use a zinc or cad plated nut or at the very least a good anti-seize.