I had to check what the gold standard McMaster-Carr does: their torque wrench drive size widget is sorted 1/4", 3/8", 1/2", 3/4", 1", 1 1/2". Glorious. https://www.mcmaster.com/products/torque-wrenches/
I've found that on a site like Amazon or Walmart that'll let you do a more freeform sort, the filter options becomes absolutely god awful.
Well done by McMaster-Carr. I assume they control their inventory a bit more than a marketplace like Home Depot, Walmart, or Amazon, so that's also an advantage.
Here's the XML Schema Definition for "Product" on Amazon [1]
This is joined on each of the linked category schemas included at the type, of which each has unique properties that ultimately drive the metadata on a particular listing for the SKU. Its wrought with inconsistency, duplicated fields, and oftentimes not up-to-date with required information.
Ultimately, this product catalog information gets provided to Amazon, Walmart, Target, and any other large 3rd party marketplace site as a feed file from a vendor to drive what product they can then list pricing and inventory against (through similar feeds).
You are right that the control McMaster-Carr has on their catalog is the strategic and technological advantage.
[1]: https://images-na.ssl-images-amazon.com/images/G/01/rainier/...
Which is a good indicator, but you can’t be sure of. Additionally you may imagine liking it but not enjoy it in life, even if true.