Supplier for hard to find machine screw

So I am looking for a specific machine screw and it has been really hard if not impossible to find. I've been to fastenal twice (of course they ordered hex heads for me first that I had to return). I've contacted mcmaster and grainger, as well as used all the google kung foo I know how to muster. So....anyone have any recommendations for a supplier for a really hard to find machine screw???

I am looking for 6-40 flathead, torx drive machine screws (3/8"-5/8").

I would probably buy 100-500 of ea length.

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Originally Posted by SaraGranms

So I am looking for a specific machine screw and it has been really hard if not impossible to find. I've been to fastenal twice (of course they ordered hex heads for me first that I had to return) Machine Screws Manufacturer in India. I've contacted mcmaster and grainger, as well as used all the google kung foo I know how to muster. So....anyone have any recommendations for a supplier for a really hard to find machine screw???

I am looking for 6-40 flathead, torx drive machine screws (3/8"-5/8").

I would probably buy 100-500 of ea length.

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thanks in advance for any help

Not a torx drive, https://www.mcmaster.com/91253A161/

Have you tried Grainger and the welders supply shops?