SE Comp. Release Thread Size?

[Velocity1]

Can anybody tell me what size threads are used on the HD SE "Pro" Comp. Releases?"  Are they a unique thread / pitch to these SE Comp. Releases?

I'll have an opportunity to borrow the HD machining fixture from a Buddy, that puts the holes, counter-bores and threaded holes in my heads for these Comp. releases, (HD Pn: 32076-04), when I upgrade my motor this winter. 

I just don't want to drill and tap myself into a corner that requires me to use these HD / SE specific compression releases.

Thanks.

V1

[Don D]

10mm x 1.0
SE compression releases are industry standard

[Velocity1]

Thanks. Sorta what I thought, but then I may have confused the spark plug hole @ 12 x 1.5mm with them which confused me even more.

Thanks for the help.

V1