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Old 10-30-2011, 09:33 AM
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sae or metric hex more common in automotive?

I don't see a lot of hex bolts but have gotten a sae socket set but am not sure if I should have gotten metric. I guess whatever is most common is the right choice. Any response appreciated.

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Old 10-30-2011, 09:41 AM
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Depends on what you are working on ....and the age of the vehicle.....Most seem to be metric these days, up here in Canada anyways......The older American stuff we tend to play with are mostly SAE.....There was a while in the 70s, when you didnt know what wrenches to bring out, those cars had both.....
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Old 10-30-2011, 09:46 AM
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I would say for cars 2000 and up. Any ideas?
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Old 10-30-2011, 09:54 AM
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Quote:
Originally Posted by poncho62
The older American stuff we tend to play with are mostly SAE.....There was a while in the 70s, when you didnt know what wrenches to bring out, those cars had both.....
My 1996 c-2500 is like that. Pain in the butt.

Quote:
Originally Posted by tech69
I don't see a lot of hex bolts but have gotten a sae socket set but am not sure if I should have gotten metric. I guess whatever is most common is the right choice. Any response appreciated.
Was checking for noises in the rearend area of a friend's Magnum R/T last night. The drainplug was a h14 Hex if I remember correctly. That IRS was seriously tucked under the car. Completely OT - but I was also blown away by how plastic fantastic the underside of that car is, even compared to my brothers 96 mustang. It's a tight fit under there for being such a big car.
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Old 10-30-2011, 10:26 AM
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Quote:
Originally Posted by tech69
I would say for cars 2000 and up. Any ideas?
You need both metric and SAE (many SBC engine fasteners are still SAE, for example) but 2000-up is otherwise mainly metric.

OT- My '80 Malibu has a bastard mix of both SAE and metric. Need both boxes when I deal w/it...
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Old 10-30-2011, 10:27 AM
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Something of a pet gripe of mine is a 7 MM hex drive fastener is fairly common on cars/trucks, brake calipers on many models for example use them, but for some reason most sets skip the 7 MM size and jump from 6 MM to 8 MM sizes! I had three sets, a folding set, a "T" handle set and a socket set and none of them had a 7 MM.
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Old 10-30-2011, 11:00 AM
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You need what you need.
I have a few Datsun 521 trucks as a project. The engine is metric. The body is SAE. The pipe fittings on the engine are BSP (British Standard Pipe) Brake line flare nuts are 3/8-24, and there brake line is 3/16.

With most cars, you need both. With more modern cars, you will also need TORX or other odd type sockets/ or drivers. And then when you get the TORX drivers, you will find you need the security TORX drivers.
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Old 10-30-2011, 11:14 AM
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You just need both.
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Old 10-30-2011, 07:45 PM
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thanks guys.
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Old 11-03-2011, 06:36 AM
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Quote:
Originally Posted by tech69
I would say for cars 2000 and up. Any ideas?
Metric only for the most part.
Some sizes cross over fairly close like 9/16 and 14MM 16MM and 5/8. If you had to buy 1 set I would buy a 3/8 drive metric set with 6 point sockets, short and deep.
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Old 11-03-2011, 11:05 AM
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Quote:
Originally Posted by T-bucket23
Some sizes cross over fairly close...
I think the first one that is "learned" is 1/2" is a tight fit on a 13mm, and vice versa. But they are not the SAME size, use metric on SAE or SAE on metric only if it's a necessity, obviously.
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Old 11-03-2011, 12:21 PM
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Just get one of these.......lol

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Old 11-03-2011, 12:35 PM
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Wrong tool. WRONG COUNTRY OF MANUFACTURER!
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Old 11-03-2011, 12:41 PM
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Quote:
Originally Posted by DanielC
Wrong tool. WRONG COUNTRY OF MANUFACTURER!
lol...didnt see that China on there.......Its the right tool if you have a 55 Chevy...They used to say all you needed for them was a Hammer and an adjustable......
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Old 11-03-2011, 01:58 PM
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Quote:
Originally Posted by poncho62
Just get one of these.......lol

Is this metric or sae
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