Help With Nuts

[forbesz1903]

I need about 4 or 5 nuts which fit an 8mm socket and have been told they have an M5 thread. However the ones I'm away to buy have a "pitch" of 0.8mm.

 

What does "pitch" mean and is it likely i need to know the pitch of the nut i need or will this M5 thread fit onto the bolt I'm screwing onto assuming M5 thread is correct.

 

Thanks In advance.

[K-9]

Try a walnut

[forbesz1903]

Try a walnut

 

But these aren't for wals....

[stef]

I thought it was

 

Walnut whips

[ebbe]

phone rollstud min. they will sort you oot.

[forbesz1903]

phone rollstud min. they will sort you oot.

 

to be honest i'd prefer not to bother with the hassle of phoning someone and buy a half dozen or dozen off the interweb so they appear some time this week.

[ebbe]

to be honest i'd prefer not to bother with the hassle of phoning someone and buy a half dozen or dozen off the interweb so they appear some time this week.

 

seems like if a sensible thing to do seen as you don't know what you need as aposed to phoning an expert.

[forbesz1903]

seems like if a sensible thing to do seen as you don't know what you need as aposed to phoning an expert.

 

I'm quite sure they'res plenty of people on here know about Nuts.

[russellh]

The pitch on metric threads is the distance from the crest of one thread to the next. Off the top of my head (dont have the Zeus book to hand) M5 x 0.8 is the standard pitch for M5. So when the thread is quoted as M5 it should be assumed as standard/course pitch.

[russellh]

Actually I'm certainin most instances M5 is always a 0.8mm pitch. Don't think there is a standard fine pitch in common use.

[forbesz1903]

The pitch on metric threads is the distance from the crest of one thread to the next. Off the top of my head (dont have the Zeus book to hand) M5 x 0.8 is the standard pitch for M5. So when the thread is quoted as M5 it should be assumed as standard/course pitch.

 

OK, the standard nuts which I'm replacing as I'm missing a few has built in washers, what difference will it make if the replacements do not have such a feature?

[russellh]

Just buy some washers to go with the new nuts.

[forbesz1903]

Just buy some washers to go with the new nuts.

 

Think there is spare washers in garage, I assume they don't have to be exact size??? they can be a couple mm out?

[tommo1903]

I will have to take down my table football game tomorrow, and it will involve nuts.

 

Hope this helped.

[tainboy]

Forbesz if this is on a car, don't do it as clearly you don't know what you're doing. Let someone who does know do it or it could easily result in the death of an innocent bystander due to your negligence.

[phoenix]

OK, the standard nuts which I'm replacing as I'm missing a few has built in washers, what difference will it make if the replacements do not have such a feature?

 

 

 

Grampian Fasteners will also help. Better to replace with identical , assuming that the right math went into the original design. Deviating slightly from original may make negligible difference.....it's nae brain surgery. However , until you do the math yourself( or check with the manufacturer ) , it's anybody's guess. Life is full of these little uncertainties.

[The Boofon]

Grampian Fasteners will also help. Better to replace with identical , assuming that the right math went into the original design. Deviating slightly from original may make negligible difference.....it's nae brain surgery. However , until you do the math yourself( or check with the manufacturer ) , it's anybody's guess. Life is full of these little uncertainties.

 

It's maths not math.

 

 

f**king Americans. :tup:

 

Forbes a larger washer would be fine providing the hole isn't too big that the nut runs right through it.

[phoenix]

It's maths not math.

 

 

f**king Americans. :tup:

 

Forbes a larger washer would be fine providing the hole isn't too big that the nut runs right through it.

 

 

 

Why do you prefer 'maths' to 'math' , boofon ? 'Math' is the more economical , I saved a couple or three milliseconds of my life by not having to type the ' s '.

 

No , I like my American cousins as much as my English , so it's not a problem for me.

 

'Math' it stays.

[BrianFaePerth]

 

Why do you prefer 'maths' to 'math' , boofon ? 'Math' is the more economical , I saved a couple or three milliseconds of my life by not having to type the ' s '.

 

 

No ye didnae ye auld c**t. Ye used way more time explaining that ye'd saved time

[phoenix]

No ye didnae ye auld c**t. Ye used way more time explaining that ye'd saved time

 

 

A very necessary sacrifice required for further philosophical debate and therefore arguably , time well spent , Byen.

 

You could be a bittie mair economical wi' yer chik , like.

[BrianFaePerth]

 

You could be a bittie mair economical wi' yer chik , like.

 

Aye, eh could, but then eh'd be forgiving ye for Michael f**kin Buble, and that's no gonna happen

[Terrorfex]

Pitch Size, put simply, is a way of measuring how many threads you have on a screw, per a set unit of distance.

 

It's an arbitrary distance (usually one inch) over the number of threads of the screw present in that distance. In a normal fraction, like 3/8, the denominator is on the bottom (The total number) and the numerator (What "slice" of the total number you have) is on the top. For Pitch Size, the fraction is reversed.

 

For Pitch size, the Denominator ( one inch) is on top, with the number of threads below. So a screw might have a pitch of 1/8, meaning for every one inch, there are eight threads present.

 

Another way of showing pitch size is to divide the distance (e.g. 1", 25.4mm) by the number of threads.

 

So Pitch Size 25.4/12 (12 threads per 25.4mm of the Screw) gives a Pitch Size of 2.1 (Rounded).

[russellh]

Pitch Size, put simply, is a way of measuring how many threads you have on a screw, per a set unit of distance.

 

It's an arbitrary distance (usually one inch) over the number of threads of the screw present in that distance. In a normal fraction, like 3/8, the denominator is on the bottom (The total number) and the numerator (What "slice" of the total number you have) is on the top. For Pitch Size, the fraction is reversed.

 

For Pitch size, the Denominator ( one inch) is on top, with the number of threads below. So a screw might have a pitch of 1/8, meaning for every one inch, there are eight threads present.

 

Another way of showing pitch size is to divide the distance (e.g. 1", 25.4mm) by the number of threads.

 

So Pitch Size 25.4/12 (12 threads per 25.4mm of the Screw) gives a Pitch Size of 2.1 (Rounded).

 

Well in laymans terms i reffered to the metric pitch being the measurement from the cret of each thread which in the case of M5 is 0.8mm.

 

You have reffered to imperial threads which are given as a TPI so when we speak about a 1/2 inch UNC its a 13 TPI, of course you can work out the pitch but unless you are programming a cnc machine you have very little need to. Metric threads are not reffered to in TPI (which you are giving a conversion for) normally hence the pitch given as a distance.

[Coopy100]

f**king degree students think a nut is something a monkey eats. In this case RusselH is correct and terrorfex is trying to make an imperial system work for a metric thread which is just plain bloody wrong. Of course you could have used the magic of google to find this out:

fred is dead

 

As for a metric thread pitch consulting the zues book says 0.8 is indeed satndard

 

As for the fact your car bolts already have washers this can mean many things. There are heaps of different types of washers but I would imagine in a car they wil be locking washers and not a simple penny washer due to the amount of vibration that will take place.

[Terrorfex]

Well in laymans terms i reffered to the metric pitch being the measurement from the cret of each thread which in the case of M5 is 0.8mm.

 

You have reffered to imperial threads which are given as a TPI so when we speak about a 1/2 inch UNC its a 13 TPI, of course you can work out the pitch but unless you are programming a cnc machine you have very little need to. Metric threads are not reffered to in TPI (which you are giving a conversion for) normally hence the pitch given as a distance.

 

I didn't know metric threads were crest to crest, versus Imperial Pitch as I explained. Cheers for the heads up.

 

f**king degree students think a nut is something a monkey eats. In this case RusselH is correct and terrorfex is trying to make an imperial system work for a metric thread which is just plain bloody wrong.

 

I acknowledge the way I did it wasn't the proper or established way ... But am fair sure the maths checks out. Still, as a f**king degree student, I'm sticking to the classroom (And later, the office) where I belong.

[Coopy100]

I didn't know metric threads were crest to crest, versus Imperial Pitch as I explained. Cheers for the heads up.

I acknowledge the way I did it wasn't the proper or established way ... But am fair sure the maths checks out. Still, as a f**king degree student, I'm sticking to the classroom (And later, the office) where I belong.

Good. leave the real work to us!

[russellh]

Would add that if its lock nuts as coopy mentioned that is required and you can only get standard nuts, get some loctite locking paste/compound.

[Terrorfex]

Good. leave the real work to us!

 

 

I'll make sure your holiday requests are promptly processed and approved, if you give me the veneer of respect that's somewhere between casting ugly glances in my direction and plain-up spitting in my path.

 

Deal?

[forbesz1903]

Yeah it's for putting my lights on my car properly as there's nuts missing and obviously the light isn't tight to the body when it's like that.

 

I've bought 8mm head, M5 threads with 0.8mm pitch locking nuts. I'm sure they will do all that is required of them.

[Nig]

Rumour round Turra is you have no trouble handling nuts most weekends