Sprite 1275 clutch slave bolts - size and thread spec?

Hi All:

Can someone tell me the spec's (size and threads) for the bolts that hold the 
slave cylinder to the transmission.  My friend John has one of the trans 
threads stripped and wants to get the correct helicoil kit for repair.  Oh, and 
he 
assures me it's an "almost stock" 1275.   Hmmm.  TIA.

TuTone