update - solved by @fskornia - it's a "presser foot screw".. ha!

fellow sewing machine nerds: i am resurrecting a Pfaff Select 1546 from the dead - a thrifting find last week. after 20+ hours of repair work, the machine is nearly done.

i have one last job: i bought a replacement presser foot attach/release assembly. it's supposed to screw into the top feed as shown, unfortunately the assembly didn't come with the screw! (pic 2, shown in red)

can anyone help me identify the screw? i couldn't find it in either the user or service manuals, and web searches are only showing screws for other machines. it would help to know even what the screw is called at this location.

#sewing #vintagesewingmachines #permaculture #repair

@vga256 I did some hunting around, and I'm pretty sure you're looking for what they call the Presser Foot Screw.
I found this:
https://shop.archaicarcane.com/product/pfaff-presser-foot-screw/

and this:
https://allsewingmachineparts.com/products/screw-presser-foot-holder-2-0-3-0-4-0-413040401

Both with different part numbers.

Pfaff Presser Foot Screw – Part#93-036196-15

SCREW – PRESSER FOOT FASTENING – PFAFF

Archaic Arcane Shop
@vga256 Although presser foot screw also seems to be used for the thumb screw that is on the top of the assembly (which I'm assuming is there to attach a quilting guide?)
@fskornia that's exactly what was screwing up my web searches before - they were all coming up with the thumbscrew due to the ambiguous name