good question there...i think it's 6-32
but SS/ln2/dice are 8-32 if im not mistaken....
<--these are for screws and not the standoffs. also depends on the standoff..
the standard ones are 6-32...the long ones seem to be a different thread...or at least mine are.
<--so my long standoff could very well be 4-40..how would i tell?