Erector screw help!!

LouEl

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Jun 7, 2019
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Put a pic of the screw on LRH for us to see.

measure the outside diameter with a caliper.

Let us know what the thread pitch is (threads per inch).

A quote from my good looking wife “don’t you ever throw anything away” my answer NO

Lou
 

LRSNM

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Contact Iron Sight Inc in Tulsa OK. They have a website and I've done business w them. They are the go to place for vintage scopes but do some modern scope work also. If they don't have it I'm betting they can point u in the right direction.
 

Wedgy

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That's probably not as simple as it sounds. I frequently have to reverse engineer parts at work and that takes time. Time that a machine shop is neither equipped to provide or is likely to have available unless you're willing to pay their shop rate. Even then you'll be lucky to find a shop willing to invest that kind of time into a single part w/o it costing way, way more than a full pop retail replacement scope.
Go to home depot and find out the thread pitch with their nuts and screws that are mounted to the post on the screw isle, if not go to NAPA auto parts or similar. Buy a die of that thread pitch on amazon and a 3/8" x 1 foot brass rod for $8 , that will give you enough to try about 24 time at making the screw.
 

ntsqd

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Go to home depot and find out the thread pitch with their nuts and screws that are mounted to the post on the screw isle, if not go to NAPA auto parts or similar. Buy a die of that thread pitch on amazon and a 3/8" x 1 foot brass rod for $8 , that will give you enough to try about 24 time at making the screw.
Extremely rare for anything gun related to have a common thread pitch. They're almost all NEF or finer pitched - or the metric equivalent. Odds of finding a screw that fits in even a well stocked 'normal' hardware store is extremely low. Just finding NF pitch screws in most is a challenge. Add in the unusual extra shape of the screw shown in the OP's pictures and it just isn't going to happen.
 

Wedgy

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Extremely rare for anything gun related to have a common thread pitch. They're almost all NEF or finer pitched - or the metric equivalent. Odds of finding a screw that fits in even a well stocked 'normal' hardware store is extremely low. Just finding NF pitch screws in most is a challenge. Add in the unusual extra shape of the screw shown in the OP's pictures and it just isn't going to happen.
," if not go to NAPA auto parts or similar. Buy a die of that thread pitch"
With the amount of resources available it's not that difficult to track down or make a screw especially if you already have one.
 

ntsqd

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Go ahead and try to duplicate the OP's screw from the hardware store.

I am not saying that it can't be duplicated, it can. I am saying that it will be nearly impossible to do so from a hardware store. ANY hardware store. Factor in the country of origin and they're likely metric. Which makes it even more unlikely to source from a hardware store in the US.

I once worked with an Engine Designer who insisted on using extra fine to ultra fine metric thread pitches (M3 X 0.3 anyone?). We had to have taps and dies made in order to meet his specified threads. They technically were standardized metric pitches, but nearly no one ever used them and the tools to make them DNE anywhere in the known world. Looking at the OP's pics it would not surprise me at all if this screw was in that range of thread pitches.
 

Sealesniper

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Take the screw you have to a local Fastenal and have them measure the screw threads and pitch. buy a couple new full threaded screws that are the right length and a couple longer with lots of nuts and a couple washers with similar head but probably socket head. Thread the nuts and washers on to one of the longer sacrificial screws, stacking nuts and washers to be same length as the shoulder of your current good screw. Using a bench grinder, grind the sides down slowly to match your current screw shoulder. Does not have to be perfect circular diameter, just smaller than the bore of the turret. Remove nuts and washers, thread them on to your correct sized screw and add a little lock tight. Let lock tight set and put scope back together. Should be fixed.
 

Wedgy

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Go ahead and try to duplicate the OP's screw from the hardware store.

I am not saying that it can't be duplicated, it can. I am saying that it will be nearly impossible to do so from a hardware store. ANY hardware store. Factor in the country of origin and they're likely metric. Which makes it even more unlikely to source from a hardware store in the US.
Not sure what hardware stores you go to but even Lowes has a large metric screw section and they even have a section of fine pitch threads AND they even have them in plastic. I also said go by a place like NAPA auto parts, they have a machine shop and if they can't ID the thread they can point you in the right direction then you can order a few screws online. You are obviously not a problem solver. Look at post #24..... that's what I'm saying to do....make a screw from massive amounts of resources that are available. It's not rocket science.... it is a screw.
 

ntsqd

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The point that you keep consistently missing or ignoring is that just from the pic I can tell that the pitch is extra fine or finer. Hardware stores do not stock those and won't have a clue about where to even get them. Those are a rare thread pitch, they're not easily available. This is not a common thread at all. A place like Fastenall *might* have a source, bring your wallet as they're going to have to order a whole box of them.

My job is solving problems and I'm quite good at it. I know exactly how to make that screw and none of my sources are hardware stores. 5 mins in SW yielded this:
i-qLznKNT-M.jpg

Lacking actual dims I had to guess. If/when I received dims I can make a drawing and send it out for quote to a couple of local shops that specialize in small machined parts. The first screw will be expensive because of all of the set-up time. Each one after that gets progressively less expensive.
EDIT: That groove in the screw head looks like it is for an o-ring, but I didn't see one in the pics. If there is an o-ring there, and it is being used for sealing rather than just holding position, then the dims for the groove will have fairly small tolerances.

Were I going to make something like this on the cheap then once a means to mfg the threads was determined I'd build up the rest of the screw with something like Devcon Aluminum putty, and once cured I'd machine in the needed details.
 
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DartonJager

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Apr 1, 2016
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I made a post about this back in January or so.

Bushnell has one tech support line for their dozen companies, and you call them for everything they make from hoppe's #9 to their bushnell scopes, to their primos coyote calls..

The same people answer the phone for all of it, and they (at least in my case), have the ability to read the owners manual to you, and that's about it. The guy I dealt with told me to take mine back to the store I bought it at, and make them replace it. Then he ultimately promised to replace my product, but they didn't have anything in stock, so he would do it when they came in. About 6 weeks later when I sent the guy an email to remind him of my situation, he told me that they still didn't have any, but when they did, he would now be willing to sell me one at a discount. I don't want anything to do with any of their products. Their support is an absolute joke..
Thank you for you sharing your experience with Bushnell CS as I had NO IDEA it was/is THAT BAD. Unfortunately I own five Bushnell scopes three 4200's and two 3200's and a B&L Elite (MIJ) spotting scope as I believe B&L was bought by Bushnell quite some time ago.

The fact Bushnell's CS is so poor is a great shame as their MIJ products are and have been FOR THE $$$ in MY experience VERY good.
I will never again buy from Bushnell.
 

DartonJager

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top of the list in a Google search.
Used the link and went to their WS. Apparently they aren't offering any (at least not YET) WGS or WCE scopes as they were for their price point both VERY VERY good scopes, I know as I own both model scopes and they have performed way above their price point for me.
 
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