Don't Trust the Website.
I recently ordered a DriveTite kit (10 pack) primarily for replacement parts for an existing cable railing project. The parts arrived quickly, within a week, and were well packaged. Unfortunately, a set of lock washers was missing. I contacted the on-line orders manager and was told StairSupplies no longer provides that part. I explained it was still included in their order form and shown in their on-line installation video. He could only say the company stopped providing the lock washers about six months ago and he will contact the web manager to edit the website. He also assured me the lock washer was not a critical part of the kit. An inadequate reponse in my view!