Need a frog adjuster screw.

Rookie,
Try calling Highland Woodworking at (800) 241-6748. They have a bench plane screw kit – part number 171903 that includes the frog adjustment screw for $9.99 (at least in the last catalog I got from them).
They also have a great website with information and tips. I love this company, formerly Highland Hardware. They have some unique items (Woodslicer resaw blades, Camelia Oil, Anant and Kamal planes, Collins “Bunny” planes, ARTI wood dyes, Hydrocote finishes) and very good customer service.

-- "Bordnerizing" perfectly good lumber for over a decade.

Last year I posted a forum topic looking for #8 parts

WayneC suggested: “Bob Kaune's“

-- Chris

Thank you both for your help. Funny thing, stopped by a yardsale last friday (I never stop at these) and picked up 4 hand planes for bout 30 bucks. 2 #5’s -one of which will be for parts, a Millers Falls #4 equivalent in need of a little rust removal, and a pretty nice #7C that needs a new iron. So I should be pretty much set for awhile for plane parts, but now I’ve got to get some stones, a guide, and sharpen up on my sharpening skills.

-- No matter where you go, there you are.