Marlin 1895 hammer spur extension set screw

[Emshey]

Hello I have a marlin 1895 dark in 45-70, they forgot to put the set screw in for the hammer spur extension. I have tried contacting marlin and gravel with no luck. Wondering if someone happens to know the thread pitch for this small screw? So I can just try and find one from a hardware store or amazon etc etc

Thanks!

 

[450yukon]

6-40. Might be easier to go to LGS and just buy an uncle Mikes set. They usually come with 2 set screws but are 5-40.

 

[bWONGER]

Uncle Mike's hammer extensions are on Amazon for $10.