Gunsmithing Looking for 8-40 flathead torx screw

[Cascade Precision]

Have a Scalar red dot mount for a Mossberg 500 shotgun. The screws they ship are short, maybe 3-4 threads of engagement. Hoping someone has a source for some slightly longer ones. This is a police training shotgun and as such gets, well, used. Hard. Last screw stripped out and having to completely redo the mounting holes.

 

[sirhrmechanic]

Msc, Granger or a specialty company called “metric and multi standard.”

mscdirect.com

May have to order a box of 50. But they will have them.

Sirhr

 

[packratt]

Mcmaster's has 8-40 screws but not flat head. MSC and grainge dont have 8-40.

Are you sure they aren't 8-32?

 

[Tiger_Shilone]

Amazon.com : Pachmayr Master Gunsmith Torx-Style Ring and Base Screw Kit : Gunsmithing Tools And Accessories : Sports & Outdoors

Amazon.com : Pachmayr Master Gunsmith Torx-Style Ring and Base Screw Kit : Gunsmithing Tools And Accessories : Sports & Outdoors

www.amazon.com

weaver style oval heads in 1/4 3/8 and1/2 “ lengths 8-40 thread. Brownells and midway and probably other stores have them as well. I got a couple of different kits of these a few years ago and they have more than paid for themselves.

 

[roostercogburn98]

Weaver style work? If so shoot me a pm with what length you need and will dig some up if I have. They are from the pachmayr kit linked above.

 

[strikeeagle1]

I source mine from Brownells......Weaver style.

 

[Cascade Precision]

Sorry guys, it actually needs to be a flathead countersunk screw. I got it figured out though.

 

[Choque]

Necroing an old thread, but I have the exact same problem. I need some 8-40 screws with a flat head for mounting my scope base to my new 110 Ultralite. Any help would be much appreciated. Where did you find yours @Cascade Precision ? I was only able to find 8-40 screws with a Weaver head, but I really need a flat head

 

[BurtG]

eBay has lots of screws

 

[Choque]

Is this what you are looking for?
Black Oxide Star Drive Fillister Head Gun Screws - 10 pcs. (8-40 x 1/4" T-15 Torx)

No, that's an 8-40 with a Fillister Head. I need one with a Flat Head (Countersunk) like this

 

[BurtG]

8-40 Screws ( .160 Diameter x .470 length)

www.kenfarrell.com

 

[Choque]

8-40 Screws ( .160 Diameter x .470 length)

www.kenfarrell.com

That's a 8-40 with a Weaver (head). Closer but still only 45 ° taper instead of the 92 ° or 100 ° a Imperical or Metric flat head has