The screws come out of Connecticut
They are made from 4037
6-48 Rolled thread cold headed bolt 3/32 allen wrench.
We heat treated locally 39 to 41 Rc. Same as a US made socket head cap screw or grade 8 bolt. The last run was 1/4 million screws.

6-48 as stated is the industry standard for Rifle mounts. Std spread is often .862 from center to center. Dates back to Unertal blocks, maybe even before that.

We have run into this even in our own shop. We borrowed a rifle for a photo shot of the mount on a Savage and we could not install the mount without re tapping the holes. As with this gentleman it mostly removed gunk and a smig of metal.

Sorry to hear the guy that had to open up his holes to get the mount on his rifle.

Brownells, Ebay and MSC carry 6-48 taps, probalby Midway also. Of course if your on here good chance one of your buddies is a gunsmith and would have one for sure.

Thank you for your support. We have been fortunate to sell Many Many Savage mounts Most popular is the 20 moa SA for us.

We do offer the older Flat back mounts also if you are in need. The short medium and long action flat back.
have the print on the new Savage EDGE for a mount. It is Unique and no other Savage that we know of matches the bolt pattern.

If you get stuck, feel free to email if you need to check a bolt pattern or if you have a screw strip out and need a replacment.

best regards
geo

www.egwguns.com