I'm putting together a Partscaster, and while I normally loathe flat-head fasteners, it's a vintage-appropriate look for this guitar. (And everybody knows the tone gets stuck in the 90° angle in a Phillips head screw.) All the genuine Fender™ hardware is stupid-expensive; I've gotta be able to find it cheaper than the $28 my shopping list just totaled up to.
So, before I go out searching about town, anybody know of a good online source for smallish slot-head fasteners? I mainly need 6-32 machine screws from 3/8" to 1 1/8", and #4 sheet metal screws in 1/2" and 1". Plain nickel is fine.
Is McMaster-Carr the answer to this hardware question, like so many others?

