Cleaning side effect. - Cleaning and Lubrication https://systemz.online/cleaning-and-lubrication/cleaning-side-effect/ AllGunStuff Discussion Board en-US Sun, 10 May 2026 17:06:07 +0000 wpForo 60 Re: Cleaning side effect. https://systemz.online/cleaning-and-lubrication/cleaning-side-effect/#post-1485 Thu, 04 Aug 2022 07:51:26 +0000
That force is perpendicular to the holes, so there is no force pushing in the direction of the hole itself.

The ability of a screw to withstand un-screwing when correctly torqued is related to the area of thread.  A fine thread of the same diameter can resist better than a coarse thread, but when the diameter of a coarser thread is increased enough, it exceeds the thread area of a smaller diameter, finer thread.

On the following link, Jon A gives a bit of math.

Link to opticstalk.com thread.


]]> Cleaning and Lubrication 414gates https://systemz.online/cleaning-and-lubrication/cleaning-side-effect/#post-1485 Re: Cleaning side effect. https://systemz.online/cleaning-and-lubrication/cleaning-side-effect/#post-1479 Thu, 04 Aug 2022 00:32:49 +0000
The barrel and chamber take the pressure, and not necessarily the action?]]> Cleaning and Lubrication Ds J https://systemz.online/cleaning-and-lubrication/cleaning-side-effect/#post-1479 Re: Cleaning side effect. https://systemz.online/cleaning-and-lubrication/cleaning-side-effect/#post-1476 Wed, 03 Aug 2022 23:36:16 +0000
The gunsmiths that I spoke to never once mentioned the action being weakened, they were all of the opinion that 6-48 is all anyone will ever need, and then they usually mention how they mount scopes to big bore rifles with those screws and there's never a problem.


]]> Cleaning and Lubrication 414gates https://systemz.online/cleaning-and-lubrication/cleaning-side-effect/#post-1476 Re: Cleaning side effect. https://systemz.online/cleaning-and-lubrication/cleaning-side-effect/#post-1475 Wed, 03 Aug 2022 21:06:28 +0000

414gates. Are you using countersunk screws for the rail?


The current 6-48 screws are cap head screws. I will have the rail and action drilled for either 4mm or 5mm metric taper head. I bought taper head and cap head in 4 and 5mm metric, the taper head has a lower profile than the cap head, and will "grip" a bigger area of the rail.

If I look at the area of thread in the action holding the rail down, in a 4mm thick section, the 4mm screw gives me 75 mm squared of contact, the 5mm 102 mm squared. A 6-48 screw in the same section has 63mm squared of thread contact area.

I don't know of a good reason not to use 5mm screws.



Are the holes over or near the chamber?

Would the larger holes cause structural weakness to the action?]]> Cleaning and Lubrication Ds J https://systemz.online/cleaning-and-lubrication/cleaning-side-effect/#post-1475 Re: Cleaning side effect. https://systemz.online/cleaning-and-lubrication/cleaning-side-effect/#post-1473 Wed, 03 Aug 2022 15:53:49 +0000
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I have often wondered about this, but kinda just went the " must have a good reason' and moved on. Why do they use those little dental tools screws and threads?
]]> Cleaning and Lubrication Treeman https://systemz.online/cleaning-and-lubrication/cleaning-side-effect/#post-1473 Re: Cleaning side effect. https://systemz.online/cleaning-and-lubrication/cleaning-side-effect/#post-1470 Wed, 03 Aug 2022 02:01:27 +0000
414gates. Are you using countersunk screws for the rail?


The current 6-48 screws are cap head screws. I will have the rail and action drilled for either 4mm or 5mm metric taper head. I bought taper head and cap head in 4 and 5mm metric, the taper head has a lower profile than the cap head, and will "grip" a bigger area of the rail.

If I look at the area of thread in the action holding the rail down, in a 4mm thick section, the 4mm screw gives me 75 mm squared of contact, the 5mm 102 mm squared. A 6-48 screw in the same section has 63mm squared of thread contact area.

I don't know of a good reason not to use 5mm screws.]]> Cleaning and Lubrication 414gates https://systemz.online/cleaning-and-lubrication/cleaning-side-effect/#post-1470 Re: Cleaning side effect. https://systemz.online/cleaning-and-lubrication/cleaning-side-effect/#post-1468 Tue, 02 Aug 2022 15:04:25 +0000
When using blue locktite, or any locktite, make sure that the threads are oil and grease free. Failure to do so ensures that the locktite won't work.

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If not your locktite is worth breadcrumbs in a famine.]]> Cleaning and Lubrication Treeman https://systemz.online/cleaning-and-lubrication/cleaning-side-effect/#post-1468 Re: Cleaning side effect. https://systemz.online/cleaning-and-lubrication/cleaning-side-effect/#post-1467 Tue, 02 Aug 2022 11:36:03 +0000 Cleaning and Lubrication janfred https://systemz.online/cleaning-and-lubrication/cleaning-side-effect/#post-1467 Re: Cleaning side effect. https://systemz.online/cleaning-and-lubrication/cleaning-side-effect/#post-1466 Tue, 02 Aug 2022 11:33:46 +0000 Cleaning and Lubrication janfred https://systemz.online/cleaning-and-lubrication/cleaning-side-effect/#post-1466 Re: Cleaning side effect. https://systemz.online/cleaning-and-lubrication/cleaning-side-effect/#post-1465 Tue, 02 Aug 2022 10:42:55 +0000
I read somewhere that in europe some folk use epoxy on the rings and mounts.]]> Cleaning and Lubrication Treeman https://systemz.online/cleaning-and-lubrication/cleaning-side-effect/#post-1465