Lug nuts

[Drainx]

I lost a lugnut on a wheel and went to autozone to just go get some new ones, but they didnt fit because the hole was too big and wouldnt fit the bolt. They were 14m-1.5. Does anyone know what the '1.5' is for, what I should be looking for, and where I can get ones that will fit properly?

[RobMilkshakes]

should be 12x1.5

the 12 is the size of the bolt, the x1.5 in metric is the pitch of the thread. meaning distance between center of thread to center of the next thread (peak to peak or valley to valley)

for reference, in standard thread the first number is again the size, but the second is simply the number of threads in one inch. for example 3/8 x 24

[SuperRA]

Originally Posted by RobMilkshakes

should be 12x1.5

the 12 is the size of the bolt, the x1.5 in metric is the pitch of the thread. meaning distance between center of thread to center of the next thread (peak to peak or valley to valley)

for reference, in standard thread the first number is again the size, but the second is simply the number of threads in one inch. for example 3/8 x 24

Totally correct but a slight clarification. 12 is the nominal outside diameter of the bolt in millimeters. Which is why the 14mm nut was too big.

[RobMilkshakes]

yep.

I just wanted to keep it simple.

ah the fun memories or learning to draft threads....

[SuperRA]

Originally Posted by RobMilkshakes

ah the fun memories or learning to draft threads....

Yuck! CAD to the rescue!

[PhatRoyale]

Yep, you bought the wrong size.

That's why research should be done before heading to the store.

Are they going to let you exchange for the correct size?

[RobMilkshakes]

Or you can usually ask the people there.....

Ok, there are a lot of places where the guy behind the counter doesn't know jack, both stores that I've worked at were included sometimes as well. but there is usually some kind of reference. Take advantage of the people there. That's why we're there, or at least those of us who know what the hell were doing....

superRA: it was in CAD, if it was by hand I wouldn't still be studying to be an engineer!

[Drainx]

Originally Posted by SuperRA

Totally correct but a slight clarification. 12 is the nominal outside diameter of the bolt in millimeters. Which is why the 14mm nut was too big.

The inner diameter of the nut was too large, not the outer diameter. Ill go try a 12 though.

[Flashmn]

should be 12x1.5

Except you got it wrong too, its 12x1.25, fine pitch... Honda uses 1.5

[eage8]

Originally Posted by Flashmn

Except you got it wrong too, its 12x1.25, fine pitch... Honda uses 1.5

no, it's 1.5. I've used toyota lug nuts on a honda before, and vice-versa

the only people I know of that use 1.25 are subaru and nissan.

[Flashmn]

no its 1.25 want proof?

Aw shit, I take it back... just checked the shelf... 1.5 :P dooh

[SuperRA]

Originally Posted by Drainx

The inner diameter of the nut was too large, not the outer diameter. Ill go try a 12 though.

Yep, that's why nuts are labeled by the OD of the bolt that it fits onto. I.e. You pretty much won't be able to measure 14mm anywhere on that 14mm nut or yours reliably. So a M14 nut will have an ID bigger than the OD of a M12 bolt hence the sliding on and off.

[Drainx]

Oh, the bolt diameter, I was reading too fast and assuming you meant the nut size. Makes more sense now.

[PhatRoyale]

Originally Posted by Flashmn

no its 1.25 want proof?

Aw shit, I take it back... just checked the shelf... 1.5 :P dooh

@ self-pwnage.

[REN69]

Originally Posted by Flashmn

no its 1.25 want proof?

Aw shit, I take it back... just checked the shelf... 1.5 :P dooh

Ah! so you don't know it all!