Replacing Ruger GP100 adjustable sight windage screw w/ hex?

[stantheman86]

Does anyone know the diameter and thread of the adjustable sight windage screw for the Security Six- GP100?

I found that a Dan Wesson elevation screw fits perfectly, but I cannot find a hex screw that fits in the windage hole.

I don't like slot screws on my Rugers, and found that hex screws look "cleaner" and are easier to adjust. I have several used GP100's with buggered screws on the sights and it just looks like crap to me.

 

[flatgate]

Hmm, I don't understand how one can "bugger" the sight screws. There's zero tension on them.......

I've been shooting big bore and small bore Ruger single actions for 25 years or so and have NEVER had any issues with the sight screws.......

JMHO,

flatgate

 

[J Miller]

Well flatgate, I'm not sure either. But I've bought several revolvers over the years, both Rugers and others with sight adjustment screws messed up. So people do it.

The one trick I learned with Ruger's sights is to manually push the blade to the left with my finger as I adjust the screw.
That takes all the tension off the screw so it easier to turn and so the pointy end of the sight blade don't hog out the index groves on the end of the screw.

stantheman86,
I don't know what thread it is either, but a call to Brownells might get the answer. Or your local hardware store - maybe.

Joe

 

[roylt]

if you have a Fastenal near by take the screw in there to match up.

As for people messing them up maybe they put locktite on it and messed it while trying to loosen later. Just a guess.

 

[stantheman86]

Thanks for the replies, some great info here

I have a couple that looked like someone didn't have a fine enough screwdriver and just jammed something in there. If one thing annoys me it's buggered screws on a gun! I have enough PD trade in S&W's with sideplate screws that look like they were removed with an icepick

I may just bring a spare rear sight to the local Grizzly and Lowe's and go through the hex screw bins and see if something fits.

Ordinarily I would just use Bowen sights on all my adjustable GP's, and it would be "problem solved" but I have a One Ragged Hole aperture on this particular GP and would like a clean looking, solid screw setup on it. I had one GP with a widage screw that walked a little bit on me, so now I can never fully trust them.

I know the Ruger replacements are cheap, but after I used a Dan Wesson elevation screw in the Meprolight night sight I put on one of my 4" adjustable GP's, the idea just stuck with me. I also got in the habit of putting Dan Wesson roll pins in the place of the solid pins on the Ruger adjustable rear sights, so far two of my GP's have the roll pins and they work great. I had some issues with the old pins "walking" out and so for like $3 a piece from Numrich, those roll pins are a great fix. Some people say it looks "cheap" but Colt used roll pins for the rear sight of all their Snake guns and those are going for thousands..........

 

[rugerguy]

they "booger" them usually when they screw them all the way in, it bottoms out, but the screwdriver doesn't, end of mystery.......... 8)

and yes, for the MOST part, they use a screwdriver that is NOT the "correct" size................... :roll:

THE "most" boogered of the screws on any given Ruger single action revolver,is the grip panel screw,followed by either of the sight adjusting screws, then the ejector housing screw, followed by the front grip frame screw, its a "toss-up" as to the remaining 7 screws( 4 grip frame and 3 lock-work) ......yes, an observation made in over 45 years of "observing" :wink:

( on a fixed sight gun of course, eliminate the sight screws.............)

 

[fjlee]

It's been a while since I tinkered with the windage adjust screw on my GP-100. I had it all apart stoning some burrs, etc.

My log shows that I _DID_ measure that screw while everything was apart. I recorded it as being a 6 X 48tpi.

Good luck with your mod........

FjLee Denver CO

 

[Pinecone]

The windage and elevation screws are 6 x 48 on the factory sight. If it has been replaced with an after market sight then that could be another story!.......................Dick :wink:

 

[flatgate]

Dont' forget the old trick of placing a piece of 10# or 20# semi-clear fishing line down in the screw hole prior to replacing the screw. That will reduce a majority of "screw movement". Trim any access with a small flame, being aware of your surroundings of course. (Not on the loading bench with open cans of powder, eh?)

flatgate

 

[stantheman86]

Thanks for the info, very helpful!