I just got a used Lyman 48WJS off of Ebay that didnt include mounting screws. I have some screw from bases and rings that thread into the holes but are too short but I have no idea what thread size they are. I'm going to have to order some from Brownell's or somewhere because there is no place local so I would like a definite answer before I place an order.

Thanks in advance,
Matt

6-48, get the long ones and file to length

Thank you kind Sir