Where can I find 8-40 flat head machine screws

[luckybuckeye]

I stripped out some 6-48 scope mount holes and need to drill out and retap the next size. My sight mount has counter sunk holes so need the flat heads if possible. I’ve looked on 2 dozen websites and can’t find 8-40 flat head machine screws. 
Here’s a picture of what one looks like:

 

[DonC]

Did you try McMaster Carr?

 

[dan_house]

Ace and TruValue here both have a "gun screws" section in the bolts section.... 

 

[JamesD.]

As said above https://www.mcmaster.com/flat-head-machine-screws/



or Grainger maybe.

 

[B]

Try here http://monsterfastener.com/group/home-and-hobby/gun/gun-screw

B

 

[shambozzie]

Try Ace hardware

 

[rob_g]

A local Fastenal would have them too

 

[SteveKralsAround]

I have them , PM sent .

 

[jkingrph]

A local Fastenal would have them too

Our local Fastenal has ceased sales and service to individuals. You must now have a commercial type account with them.

 

[Kevin23]

My local true-value hardware store has a couple trays of gun screws that I'm guessing those would be in. 

 

[Kevin23]

http://monsterfastener.com/group/home-and-hobby/gun/gun-screw 

 

[bltefft]

A local Fastenal would have them too

Our local Fastenal has ceased sales and service to individuals. You must now have a commercial type account with them.

Wow, our Fastenal still sells to locals like me - at least it did a month ago. I just walked in, bought some bolts and walked out.

 

[Choque]

I know this thread is old, but I'm having the exact same problem. I also need 8-40 flat head screws and can't seem to find them anywhere. And yes, I've seen the 8-40 weaver screws over at monsterfastener.com but weaver head != flat head. Any help would be appreciated.

 

[ba49]

You might try Brownells they specialize in gun smithing supplies.

 

[Choque]

I did check there first. Only Weaver and Fillister 8-40s

 

[dv8eod]

Try Fastenal.

 

[Choque]

Negative. They only offer flat heads up to #8-32 and then the list continues with #10-24

 

[dv8eod]

Last two places I could think of is Grainger's and McMaster-Carr. Sorry I can't be of more help.

 

[Ricochet]

McMaster Carr or MSC

 

[dv8eod]

Sorry. I didn't realize this was an old thread and my suggestions were already mentioned.

Did have a thought, though. You could get some rod and make one. Would just need a die in the size you need, a torch, hammer and file to shape the head. Should be able to get a cutoff cheap from a metal dealer. They should be able to tell you how to heat treat it, too.
Or you could ask a locksmith if they have one. They work with tiny screws.