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What thread are these screws?

Posted: Thu May 21, 2020 6:34 pm
by JDN58
Anyone know for sure what size screws hold the rear sight and or red Dot sight bases on? I'm thinking they are metric because a metric hex key seemed to fit the best. Thanx in advance!

Re: What thread are these screws?

Posted: Thu May 21, 2020 7:56 pm
by ncjw
JDN58 wrote:
Thu May 21, 2020 6:34 pm
Anyone know for sure what size screws hold the rear sight and or red Dot sight bases on? I'm thinking they are metric because a metric hex key seemed to fit the best. Thanx in advance!
m3x10

Re: What thread are these screws?

Posted: Thu May 21, 2020 10:08 pm
by JDN58
Thank you! I gotta pick up a couple at the local hardware.

Re: What thread are these screws?

Posted: Thu May 21, 2020 11:14 pm
by BentAero
M3 x .7 thread pitch. Depending on optic used, 10mm length might be too long...

Re: What thread are these screws?

Posted: Fri May 22, 2020 6:07 am
by LT USN (Ret.)
I use 10mm with my Holosun 507C for a reference.

Re: What thread are these screws?

Posted: Fri May 22, 2020 10:58 am
by JDN58
I will be using them to remount the factory rear sight. Hope DO-IT has these little devil's. FWIW, the previous owner had loctited the optic plate screws. On top of the, the screw heads were already slightly deformed. I got lucky enuff to get one out, the other head stripped right away. I dremeled the head off and used tiny pair of dykes to screw the rest out. No Mars, all good!

Re: What thread are these screws?

Posted: Fri May 22, 2020 3:08 pm
by JDN58
Got 'er all fixed up. Did some shooting, shoots FINE!

Re: What thread are these screws?

Posted: Sun May 24, 2020 10:59 pm
by JDN58
Anyone have an 18rd mag for sale? Like to run one withought the 2rd extension. That or what do I need to convert one of my 20rd to 18rd? Thanx!

Re: What thread are these screws?

Posted: Wed May 27, 2020 9:55 am
by Ben W.
I'm going to have the same problem; stripped screw head on the mounting plate. I hate hex drive, much prefer Torx!! Anyway, thanks for the tip on removing!