Yankies call a bolt that fits a 13 mm socket a 13 mm bolt... A 8mm bolt with hex head takes a 13 mm wrench or socket. No one calls a 1/2" bolt (1/2" diameter threads) a 3/4" bolt. Why only be stupid when it comes to metric sizes. - Upgoat

Yankies call a bolt that fits a 13 mm socket a 13 mm bolt... A 8mm bolt with hex head takes a 13 mm wrench or socket. No one calls a 1/2" bolt (1/2" diameter threads) a 3/4" bolt. Why only be stupid when it comes to metric sizes.
submitted by germ22 to Machining 5 monthsJan 3, 2025 13:41:17 ago (+16/-0) (Machining)

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[ - ] Thyhorrorcosmic103 8 points 5 monthsJan 3, 2025 16:09:09 ago (+8/-0)

I refer to bolt sizes by their minor diameter.

[ + ] germ22

[ - ] germ22 [op] 1 point 5 monthsJan 3, 2025 16:13:39 ago (+1/-0)

Savage.

[ - ] xmasskull 5 points 5 monthsJan 3, 2025 14:10:48 ago (+5/-0)

Metric system? Another jooish plot to circumvent OUR Democracy!

Those rats!

yuk,yuk,yuk!

[ - ] observation1 5 points 5 monthsJan 3, 2025 13:59:48 ago (+5/-0)

Any length measured in mm is dead to us.

We've also been calling it needle dick pliers for over 60 years.

Coincidentally, yours is 13mm

[ - ] observation1 3 points 5 monthsJan 3, 2025 14:07:39 ago (+3/-0)*

Care to explain unit of measurement on shoe sizes?

Or why size jumps from 43 to 44 (which represents a leap of 10.5 to 12), thereby screwing everyone with a u.s. size 11 or 11.5, which just so happens to be the most common shoe sizes in the western world?

Maybe you can explain what the 43 or 8 equivalent actually means and tell us why you aren't using mm here and why you can't agree on a unit of measurement for feet size, Which is a classic measurement relevant to our own body - because it literally is.

[ + ] CaptainMongo

[ - ] CaptainMongo 2 points 5 monthsJan 3, 2025 14:29:48 ago (+2/-0)

The Most Mysterious Shoe/Clothing EU Metric Sizing Goes To The Italians...

[ + ] germ22

[ - ] germ22 [op] 2 points 5 monthsJan 3, 2025 14:30:09 ago (+2/-0)

No, I cannot explain stupid EU shoe sizes, it's dumb.
Can you explain women's US shoe sizes to me?

[ + ] observation1

[ - ] observation1 0 points 5 monthsJan 3, 2025 14:33:51 ago (+0/-0)

Also a European invention.

[ + ] doginventer

[ - ] doginventer 3 points 5 monthsJan 3, 2025 14:43:00 ago (+3/-0)

French.

[ + ] observation1

[ - ] observation1 1 point 5 monthsJan 3, 2025 14:59:21 ago (+1/-0)

A EU women's shoe size 42 corresponds to a US is a women's shoe size 9.5 (foot length about 10.68")

A EU men's shoe size 42 corresponds to a US men's shoe size 8.5 (foot length is about 10.25").

How is that French?

[ + ] doginventer

[ - ] doginventer 2 points 5 monthsJan 4, 2025 07:01:44 ago (+2/-0)

I was referring to the metric system.; Charles Maurice de Talleyrand-Périgord and the Conférence générale des poids et mesures to be (over) specific :)

[ - ] Anus_Expander 2 points 5 monthsJan 3, 2025 16:19:31 ago (+2/-0)

If this is about the shopping cart situation, allow me to explain: most commercial wheels on carts, dollys. etc have a integrated bolt as part of the wheel assembly. It is held onto the cart with a nut. One needs a 13mm socket to remove the nut, which then frees the wheel/bolt assembly for theft (KOZEL). Nobody gives a shit about the bolt part.

[ + ] Clueless_Enigma

[ - ] Clueless_Enigma 2 points 5 monthsJan 3, 2025 18:13:26 ago (+2/-0)

Threaded stem casters, for the folks curious what the wheels with a bolt on top is called... Yes I have looked that part up previously, dont judge me.

[ - ] SundayMatinee 2 points 5 monthsJan 3, 2025 15:58:14 ago (+2/-0)

Out-to-out bolt thread diameter is used for referring to bolts since we engineers use that measurement to perform shear strength calculations. All bolt heads are naturally a larger diameter (flat to flat or point to point) than the bolt itself.

AISC Table 7-19: https://i.postimg.cc/cH59g4gW/T7-19.png

[ + ] germ22

[ - ] germ22 [op] 1 point 5 monthsJan 3, 2025 16:08:22 ago (+1/-0)

Right, which is another reason why it's dumb to call the bolt size by the wrench size. It doesn't account for different head sizes like heavy hex, or different head styles, Hex, torx, cap...

[ + ] Nosferatjew

[ - ] Nosferatjew 3 points 5 monthsJan 3, 2025 16:29:47 ago (+3/-0)

It's almost as if the most logical and intuitive way to standardize bolt sizing is also the simplest and best way.

[ - ] fritz_maurentod 2 points 5 monthsJan 3, 2025 15:31:30 ago (+2/-0)

We don't call them "13 mm" bolts in Europe, but M13.

[ + ] germ22

[ - ] germ22 [op] 1 point 5 monthsJan 3, 2025 16:02:26 ago (+1/-0)

You are correct.
M13 is a non standard bolt size. I'm sure you could find it in some sort of specialty applications, but generally it goes M9 M10 M11 M12 M14 M16 M18 and so on.

[ + ] Master_B

[ - ] Master_B 1 point 5 monthsJan 3, 2025 17:57:49 ago (+1/-0)

And a 8mm bolt with a flat to flat head size of 13mm is called M8.

[ + ] JudyStroyer

[ - ] JudyStroyer 0 points 5 monthsJan 3, 2025 19:10:42 ago (+0/-0)

American here. I was looking to comment on this very thing. That’s a M8.

[ - ] Puller_of_Noses 2 points 5 monthsJan 3, 2025 13:59:43 ago (+2/-0)

The metric system was invented by a guy that wanted to boast about his 7 and a half centimeters.

[ - ] lolxd 1 point 5 monthsJan 3, 2025 22:13:44 ago (+1/-0)

I refer to my bolts by the size of the allen head that fits it.

[ - ] Imnotajoo 1 point 5 monthsJan 3, 2025 17:44:03 ago (+1/-0)

But muh fractions!!

[ - ] Kozel 1 point 5 monthsJan 3, 2025 15:34:01 ago (+1/-0)

Don't count me as a standrard for what things are called, I don't work in any relevant industry and don't know the standard way to refer to things.

[ - ] jfroybees 0 points 5 monthsJan 4, 2025 01:37:21 ago (+0/-0)

https://websiteofahistoricalpolymath.wordpress.com/2017/07/24/measurement-in-the-middle-ages/

I'd say we yanks are the real trads.

[ - ] o0shad0o 0 points 5 monthsJan 3, 2025 22:19:49 ago (+0/-0)

I've caused a stir on some forums and in some chat trolling about how there's no even metric drive standard for sockets. They're all 12,7mm (1/2"), etc. They start hemming and hawwing quite amusingly.

[ - ] Whatthefuck 0 points 5 monthsJan 3, 2025 22:11:32 ago (+0/-0)

Everyone always argues over metric vs imperial, but why doesn't anyone care about our hexadecimal time system? Why do all these metric-lovers accept a 360 degree circle? Why aren't they all scrambling to abandon that much older system?

Clearly the Babylonians are behind this.

[ - ] Nosferatjew 0 points 5 monthsJan 3, 2025 16:27:44 ago (+0/-0)

The (((metric system))) is just more globalist one-world bullshit.

[ + ] Master_B

[ - ] Master_B 0 points 5 monthsJan 3, 2025 18:01:23 ago (+0/-0)

Yeah, napoleon was a masonigger.

[ - ] ProudRebel 0 points 5 monthsJan 3, 2025 15:16:09 ago (+0/-0)

@germ22 wrenches.

[ - ] RobertJHarsh 0 points 5 monthsJan 3, 2025 14:54:29 ago (+0/-0)

Toyotas are assembled with 10mm bolts. Like every single one. Now 13mm are on the shopping carts I disassemble when a homeless person is strung out on drugs. I take off all the wheels.

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