Action bolts question

[bam_bam]

I got a new McMillan stock for my 110 and I am curious if I need longer bolts to bolt the action to the stock? Both bolts will go through and thread in a little ways but it doesn't seem to be but a couple turns and I'm out of bolt. If I do need longer ones where is a good place to get them?

[Robinhood]

McmasterCarr is one place. When I am checking to see if my action screws are the right length I take the bare stock and insert the screws holding them seated I look at the screws from the inlet side.

[Sponxx]

I got a packet of button hex heads at ebay. Had to trim them down cause the button head didn't fit the trigger guard, took care of it with emory cloth and a drill until they did. Cut them to length with a dremel.
Thread pitch 1/4-28