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Why oddball screws on guns?
- fortyshooter
- Ranch Foreman
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Why oddball screws on guns?
Coming from a machinist point of view...why 8-40 screws for the sight mount screws on the rifle receivers instead of common 8-32??
Yes I know more threads per inch for better strength...but a sight mount??
So much for a quick little project. 8-40's hard to come by at typical walk in stores!
Yes I know more threads per inch for better strength...but a sight mount??
So much for a quick little project. 8-40's hard to come by at typical walk in stores!
0 x
Re: Why oddball screws on guns?
I know its not a local store 40 but have you thought about Brownells?
0 x
Don't worry about getting older and still doing stupid stuff. You'll do the stupid stuff as always, only much slower. Hold my beer and watch this.......
H001T .22LR
H001T .22LR MONUMENT VALLEY
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H001T .22LR
H001T .22LR MONUMENT VALLEY
H003T PUMP .22LR
BBS .41 MAG
SS .357
SIDE GATE 38-55
- JEBar
- Town Marshal / Deputy Admin
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Re: Why oddball screws on guns?
so they can get folks like me to spend money on things like Wheeler Engineering Gunsmithing Screwdriver Set with Durable Construction and Storage Case for Gunsmithing and Maintenance ===> https://www.amazon.com/Wheeler-Engineer ... 314&sr=8-4
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- Sir Henry
- Administrator / Owner
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Re: Why oddball screws on guns?
You’ll understand when you are a little older
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Hi, my name is Gene and I'm a Henryholic from Wisconsin.
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Range Reporter: Henry Repeater
Re: Why oddball screws on guns?
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8-40 is very common here. Not so much 8/32.
8-40 is very common here. Not so much 8/32.
fortyshooter wrote: ↑Fri Feb 21, 2020 5:32 pmComing from a machinist point of view...why 8-40 screws for the sight mount screws on the rifle receivers instead of common 8-32??
Yes I know more threads per inch for better strength...but a sight mount??
So much for a quick little project. 8-40's hard to come by at typical walk in stores!
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- North Country Gal
- Firearms Advisor
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- Joined: Thu Apr 07, 2016 12:46 pm
- Location: northern Wisconsin
Re: Why oddball screws on guns?
Actually, 6-48 is the standard size used by the vast majority of brands for the thread size on scope mounts, even brands made outside the U.S. Marlin was always the oddball with it's 8-40. If you need 8-40, check mounts for Marlins.
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Re: Why oddball screws on guns?
Another former machinist here. You might find a 8-40 at Lowes or Home Depot, if you have one handy, but likely they would be a socket screw head. Never had a need to check, but might be worth a look if you're close. Other than that, Brownells, etc. as someone else said. Good luck........fortyshooter wrote: ↑Fri Feb 21, 2020 5:32 pmComing from a machinist point of view...why 8-40 screws for the sight mount screws on the rifle receivers instead of common 8-32??
Yes I know more threads per inch for better strength...but a sight mount??
So much for a quick little project. 8-40's hard to come by at typical walk in stores!
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I rarely ever buy a rifle, but when I do, it's a Henry.
"Every day above ground, is a good day" ( Al Capone )
"Every day above ground, is a good day" ( Al Capone )
- Rifletom
- Deputy Marshal
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- Location: California Territory
Re: Why oddball screws on guns?
forty, I might have some 8-40 screws. I'll check today when we get back from church and breakfast. Pretty sure I do, but, will check.
Edit: Dang, 6-40x3/8" and 6-48x1/4". Well, we tried. About 10 each.
Edit: Dang, 6-40x3/8" and 6-48x1/4". Well, we tried. About 10 each.
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