JIS fasteners at McMaster

[m in sc]

Just as an FYI, they do carry JIS hardware, in particular, the 12mm hex m8 nuts and panhead screws.

Im not sure how recent this is, but I don't remember them having them a few yrs ago. the nuts in particular are necessary on some exhaust and cylinder applications.

https://www.mcmaster.com/jis/

[SoCal250]

and in stainless too

[m in sc]

the flanged jis ones just came in this morning, they look great. for the cyls and head on the tzr... and yes, 12mm for sure.

[gardenhosebusabottle]

Very nice.  Bookmarked!

I have similar 10.9 JH flanged for the intake manifolds (local hardware store).  Didn't know they had the exhaust Flange nuts. <--What size are the exhaust nuts for the 400?

[Vintagetz]

8X1.25

[350GUY]

They also carry JIS bit sets...

https://www.mcmaster.com/jis/jis-bit-sets/