What size set screw for TFX Pro rear sight?

[lafn96]

I've tried calling and emailing TruGlo; haven't heard back in over a week. I'm seeing conflicting info online, ordered some 6-40 x 1/8 and those are the wrong size. Anyone know?

 

[peytoncreekhunter]

I'm not sure, I'd take the slide off the gun and take it to Lowe's. I bet they will have it.

 

[Jeff43]

A lot of Ace Hardware stores have boxes in the bolt section with "Gun Screws" and some True Value stores too