Rear seat - Door hardware

[DaYooperTransplant]

I sucked one of the rear seat clips up in the vacuum quite a while ago, and have been looking around for one for a while. No luck at Ace Hardware, or Amazon. Figured I’d just drill a hole in the rod and use a cotter pin but thought I’d ask if anyone has a source first.
Also looking for a door hinge pin nut.
Thanks.

 

[DrDmoney]

Hairpin clips

https://www.mcmaster.com/browse-fasteners/pins/hairpin-clips/
You can get the nuts from Quadratec.