So I'm a little confused. It seems like 21 degree fullhead framing nailers are fairly standard.
R602.3(1) Fastening Schedule Item #16, 16d nails are required to attach studs to plates (which there'd be a ton of when building walls).
But when I go to try and find some plastic collated 21 degree 16d nails, they are non-existant. Lowes only sells 4 different products at 3.5" (non of which are 21 degree), Home Depot only has one and it seems a little sketchy, and Amazon has a couple of products but the ones that are actually rated seem really expensive. Am I missing something? It seems like something that is required by code would be sold all over the place.