OK, Nicksacco, now we're getting someplace! This may work. It's a box of 100 so maybe I could use some of the extras to make a necklace and matching earrings. Could be a big seller! People will buy anything these days. Thanks for the tip.Hi @Tractor Gal
12.5mm is about 1/2 inch.
These washers are Belleville washers due to their concave shape.
Check this out https://www.bsstainless.com/american-screw-sizes
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American Screw Sizes | BS Stainless Limited
American Screw Sizes: Thread Diameter, Sizes, Nearest Fractionwww.bsstainless.com
It appears there isn't a number for 12.7mm
But there are Belleville washers for M12 bolts and I cannot find a number for bonded epdm at 12mm.
It seems #14 is largest.
Maybe someone knows if they exist.
In lieu of that, you could use some epdm or similar obtained from a hydraulic shop (cut your own) and a regular 12mm washer - a thick one or double up 2 thin ones.
Another possibility might be copper crush washers such as those used in motorcycles for oil drain plugs.
I used that concept on some worrisome hydraulic lines that wouldn't seal correctly.
Well heck - check this out - note the title to search on "
Bonded Sealing Washers M12
TG
