Seb max bolt ?

[DaleTN]

Does anyone know what size bolt/thread would fit in this hole for the seb max rest? Looking to try and rig up a shell holder.
Thanks for any help

 

[Danley]

Try M12x1.75

 

[G Liles]

Ain’t that where the wigglin pin goes??

 

[shoot4fun]

Ain’t that where the wigglin pin goes??

????
The home he has circled is threaded.
The hole in the center of the rear let is not so that must be where you're thinking about.

 

[CADDIE5]

Amazon has m12x1.75 bolts. I got some for my mini-x for Nationals. The far rt has much slope and need to level everything up.