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6 point socket on 12 point bolt?

subarub4

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I was curious because I cant find a 12 pt. In 3/8 and the 1/2" is too fat to fit. Anyways just curious if its going to round or anything because I need to split a block.

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shamrock12

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This is such an elementary question that you need advised to not proceed.

Stop doing whatever you were doing and find something unrelated to do.

There is no such an elementary question in this forum. Everyone have/had to learn at some point.

So instead of telling the OP to back away from his project, how about just answering his question and move on? :headshake
 
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subarub4

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Looks like I will have to order from amazon then.. the guy swore at the store it would work Adv auto.. I told him I don't think so.. im tired of running around went to 4 stores and none have them

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Bigplum

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What size bolt ?
Some of the cheaper sockets have thicker side walls , so you may be able to get a more expensive & slender 1/2 one to do the job
 

tshetter

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What size is the fastener?

As mentioned, a spline/universal socket may work for you. But I would imagine that finding a single spline/universal socket might be more difficult than the 12pt and more expensive.
 

iajonesy

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Will a 12 pt. wrench get at your bolt? I had this problem at work when changing chopper knives and I bought a good quality box end wrench to do the job.The bolts were 3/8" aircraft type with 12 pt. heads also 3/8".

Mike
 

dudutzu905

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just to explain what the guys above were trying to say... it is NOT physically possible to use a 6 point socket on a 12 point bolt/nut, it works the other way around but not this way,
and just like like they said a spline/universal socket/wrench should work, if it's easier to find that as opposed to 12 point one
 

BDT/NWMN

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This is such an elementary question that you need advised to not proceed.

Stop doing whatever you were doing and find something unrelated to do.

Duckface, you have no idea how much I agree with you..


OP: buy a service book for the unit you are working on, and read the information on proper tools and their use.... Those auto parts stores you visited should have a Hayes or Chilton repair manual...
12point sockets,,, Sears has lots of them...


3/8 and 1/2,,,,does your question pertain to the socket drive size or the bolt head size?? How your question was presented could have been misunderstood; and resulted in the answers you were given; and again; misunderstood...

Can also help to tell what machine you are working on... One particular socket, such as a thinwall, will fit where others will not....
 

shockwave

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The only other chance I could say is if you have a flex socket wrench I have jade to use this before when I did not have 12 point socket available. Where a standard box end of wrench would not work
 
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subarub4

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Duckface, you have no idea how much I agree with you..


OP: buy a service book for the unit you are working on, and read the information on proper tools and their use.... Those auto parts stores you visited should have a Hayes or Chilton repair manual...
12point sockets,,, Sears has lots of them...


3/8 and 1/2,,,,does your question pertain to the socket drive size or the bolt head size?? How your question was presented could have been misunderstood; and resulted in the answers you were given; and again; misunderstood...

Can also help to tell what machine you are working on... One particular socket, such as a thinwall, will fit where others will not....


well at least you did add something helpful to your post.. I don't understand why you would bother quoting him? It's my first time splitting the block so relax.. the FSM does not list socket sizes and I'm not lucky enough to have a 3,000 piece socket set at my disposal.
 
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subarub4

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What size bolt ?
Some of the cheaper sockets have thicker side walls , so you may be able to get a more expensive & slender 1/2 one to do the job
On the socket I had (I returned it) looked just like this one,
2bdebc15-bd54-4926-8366-cc981e92c44d_300.jpg
the issue is the neck of the socket was too fat to fit where the bolts are, in case anyone is wondering it's a Subaru Ej25D block

What size is the fastener? It's 12 mm

As mentioned, a spline/universal socket may work for you. But I would imagine that finding a single spline/universal socket might be more difficult than the 12pt and more expensive.
because I don't use 12 points much at all. I really don't want a whole set, the only other 12 point I have is 14mm for the head bolts.

Do you have a pawn shop near you? Bet if you dig a little you would find one.
Lol not in this town maybe about 30 miles away.

is this a 14mm by any chance?
Nope

Will a 12 pt. wrench get at your bolt? I had this problem at work when changing chopper knives and I bought a good quality box end wrench to do the job.The bolts were 3/8" aircraft type with 12 pt. heads also 3/8".

Mike
No way.. **** i'm not sure I took a picture but they are recessed and anyone who knows a Subaru motor will know which bolts I'm talking about.. It's recessed about a good 3 1/2 - 4 inches.

just to explain what the guys above were trying to say... it is NOT physically possible to use a 6 point socket on a 12 point bolt/nut, it works the other way around but not this way,
and just like like they said a spline/universal socket/wrench should work, if it's easier to find that as opposed to 12 point one
I tried to tell the guy that however I never liked doing a socket that way, I'm just going to return the socket.
 

bpankratz

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I have done it before on bolts that I knew would come out nicely and that I didnt plan on re using. Depends on the size, might have to hammer on wrecking fastener and socket.

EDIT: my situation was similar, head studs on a 2JZ.
 
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subarub4

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You can see how far the bolt sits back, I'm going to have to get a thin wall socket I was looking at this one online but not sure if it's going to get in the way like the other..

And while that picture looks like the socket will fit the fat part is the one that gets stuck.
 

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Givl Reggin

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6-point on a 12-point bolt isn't likely to work. The geometry of it says 6-points may just be enough to get a hold on the tips of the 12-points, but I would bet it will most likely round off the head if you have to apply a fairly decent amount of torque to break it loose.

FYI-Sears has a full selection of 12-point sockets in both shallow and deep styles in both 3/8" and 1/2" drive. I would be very surprised if they didn't have the size you need in stock.
 
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BDT/NWMN

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OK Craftsman 3/8 drive 12point deepwell size 12mm socket
number on socket is 44416
outer diameter of socket is .689"
Hope that works out..
 
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Gmonkee

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A 1/4" drive socket doesn't have that shoulder. How tight are those bolts torqued down? With a good quality extension and a gentle but strong hand pulling on the breaker bar it might work.

If that scares you have someone weld a 1/4" drive socket on the end of a solid round bar, make it as long as you need it to be. Weld a worn out 1/2" drive socket on the other end to use the drive square. A reusable tool no one outside the engine factory or the dealership seems to have, and on the cheap.

This is why used CM sockets exist, welding fodder for specialty tools.
 

Coach James

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You can see how far the bolt sits back, I'm going to have to get a thin wall socket I was looking at this one online but not sure if it's going to get in the way like the other..

And while that picture looks like the socket will fit the fat part is the one that gets stuck.

I don't see a bolt. Where is it?

Coach
 

Westly

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I had to look up 12-point bolts. Why would anyone use one? Easier assembly by robot or something?
 

dudutzu905

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OK Craftsman 3/8 drive 12point deepwell size 12mm socket
number on socket is 44416
outer diameter of socket is .689"
Hope that works out..

that or even a shallow one with an extension, which might help with the lack of clearance
 

dudutzu905

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I believe that for a given size if not rusted a 12 point on a 12 point can deliver more torque without rounding than a 6 point on a 6 point.

which in this case means that they(manufacturer) can use a bolt with a lot smaller head, for example for the amount of torque it needs to be applied to the bolt they would have had to use a bolt with 17mm hex head, instead they used 12mm with a 12 point head
 

Wakefield

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Trying to read Wright catalog-looks like 12 point 12mm. deep in 3/8" drive has outer diemeter listed @ 17.48 (I guess mm.)
Would Snap On's be thinner? (not sure if O.P. said if his need is 12 mm.)

(edit Wow I need to study using this weird new Snap On website-looks like "SFM 12" has drive end diam. 17.2 mm. and other end 16.5 mm.
 
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subarub4

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A 1/4" drive socket doesn't have that shoulder. How tight are those bolts torqued down? With a good quality extension and a gentle but strong hand pulling on the breaker bar it might work.

If that scares you have someone weld a 1/4" drive socket on the end of a solid round bar, make it as long as you need it to be. Weld a worn out 1/2" drive socket on the other end to use the drive square. A reusable tool no one outside the engine factory or the dealership seems to have, and on the cheap.

This is why used CM sockets exist, welding fodder for specialty tools.
I don't know the FSM does not give tq specs, I know I used my M18 cordless impact wrench and it was unable to take the bolt out.. I used my air impact at 125 psi and still unable to get it to budge..

I ended up having to use my breaker bar and it finally came un-done but that was a bolt in another area not so close to the pistons.
 

Wakefield

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I don't know the FSM does not give tq specs, I know I used my M18 cordless impact wrench and it was unable to take the bolt out.. I used my air impact at 125 psi and still unable to get it to budge..

I ended up having to use my breaker bar and it finally came un-done but that was a bolt in another area not so close to the pistons.

I guess use the biggest drive that will fit in there and impact one if there is room for it but if clearance isn't enough then I guess you have to guess at the strongest thin one---
 
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subarub4

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I guess then he needs a 14 mm.
No Because the head bolts are 14 mm and the block bolts are 12 mm

I guess use the biggest drive that will fit in there and impact one if there is room for it but if clearance isn't enough then I guess you have to guess at the strongest thin one---
I have a thin wall socket that I ordered but I was wondering why does it seem thicker wall sockets waste all the space where the socket connects? why not just make all of the 1/2" sockets thin walled?
 
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subarub4

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Because all else being equal, thicker walled sockets are stronger and last longer, especially under the torque loads that 1/2" drive is most often used for.

And most would be used under a impact wrench right? I know most say you need impact rated sockets but I noticed both my impact and non impact sockets are of the same make up.. so what other then the shattering part what more does a impact rated socket have? I need to get another set since I have a hairline crack in mine but I don't use that one socket with the wrench.
 
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