Latch set screw size?

[bladeturner]

My bike arrived missing the latch set screw. Lectric is of course sending a replacement, but I have access to a machine shop with a bunch of hardware, and I might have the one needed, I just need to know the size and length. Anyone know what it is?

 

[PaleBlueDot]

not sure of the original length.when i replace mine i went with a longer one from ebay. M6 x16 allen GRUB SCREWS.