Winchester model 1400 scope ring mounting screw size ?

[iron_maiden]

Can anyone tell me what size screw fits an early 80's Winchester model 1400 12 gauge scope ring mount ?

 

[Brian618]

If it's factory it should be 6-48

 

[iron_maiden]

If it's factory it should be 6-48

Ok.. should be 6-48 thanks. I will look for a set online