AX forend/rail screw thread size?

Waorani

Crusty Caballero
Full Member
Minuteman
Feb 14, 2017
2,942
4,396
Greenbow, AL
I've managed to misplace the 10 screws that attach the forend/rail to an older AX chassis. Pulled one from another stock and it fits both 8-40 and 4-.7mm thread checker. Other than the action screws, I'd assume they use metric for everything else. Anyone happen to know the correct spec?