Want to Buy 064 Bing 49 screw

[Dave P 71801]

I need 1 screw on the diaphragm cover for my Bing 49 on my 064 ive tried every screw I can find nothing fits ive tried screws from Walbro WJ, HD, HDA, HDC, WT. Zama C1Q, C1U, C3 something, Tillotson HS and everything else I could find with no luck. Ive also tried the auto parts stores, Hardware, electronics repair, and saw shops and I haven't even figured out what thread it is. Please PM me if you happen to have a screw that will fit if it looks the same even better but if not thats ok too. Here are a few pics of the one I need.

 

[KarlD]

I’ll have a look; think I’ve only got a spare Zama tho...