Winchester SXP receiver plug screws?

[grimreefer]

So I lost my plug screws after I installed an optics mount, which I've now removed. There is an internal "rail" in the receiver that has holes that line up with the receiver holes. I think the original plug screws extended into this rail...I can't remember for sure or if it's even important. Were they just standard 6-48 plug screws? Where can I get replacements?

 

[B.H.B]

Any full service dealer should have them. You could also look up local gunsmith. They're standard plugs on my sxp.