Worth buying SAE?

[greasemonkey44]

Cap'n a 90s series 350 uses 9/16 head bolts on the water pump
And the u joint strap bolts are sae as well
Iirc the rear diff cover bolts are 1/2

I have bought a lot more sae than I expected to need; they are out there waiting

 

[Steinmetz]

You're gonna need pretty much a full set of both.

I'm Canadian , they only taught metric in school, but standard is far more common in day to day life.

The result ends up being a hodge podge of both. Older folks are likely to speak in 4.5L imperial gallons. Younger people tend to use US gallons. Kilometre markers on the highway are commonly called mile markers. Kpa and Mpa mean absolutely nothing to most people. I prefer to read the outside tempature in C but the inside thermometer is set to read in F. You never know what you're gonna get


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This is why Air Canada Flight 143 ("The Gimli Glider") ran out of fuel in flight. No one was properly tending to the metric units of measure; in this case, the volume of fuel onboard the aircraft.

 

[wolf_from_wv]

I use a 3/8" allen socket for brake caliper slide bolts on a 2000 S10. 5/16" bolts hold the exhaust together. 5/16" wrench on battery bolts.

I use 2-56, 4-40, 6-32, 8-32 and up bolts to hold projects together.

Scope mounting bolts are 6-48 and 8-40.

Bathtub faucet used 1/8" allen wrench.

I have used SAE and metric line wrenches on the same vehicle.

 

[Boiler]

Science, engineering and technology in the U.S. is 100% metric.

For whatever reason Aerospace is still SAE??

Automotive is now 100% metric.

About the only things SAE are "old ****" as others have said, aircraft and our speed limit signs.

Quoted for being untrue. Maybe in academia, but not in manufacturing. Try building with metric tubing, fasteners, etc. look at the fasteners at McMaster Carr. Which are cheaper, more plentiful selection of types and finishes? Motors and mechanicals are in HP & lb-ft.

Automotive and outsourced things are metric. Durable goods made in the USA are often SAE.

I often hear the cries from "fresh" engineers that we should be using metric. Yeah, it's easier. It's also expensive in the USA.

 

[Cap'n]

Cap'n a 90s series 350 uses 9/16 head bolts on the water pump
And the u joint strap bolts are sae as well
Iirc the rear diff cover bolts are 1/2

I have bought a lot more sae than I expected to need; they are out there waiting

Negative. 14mm IIRC and the u joint strap bolts are 11mm, the diff cover bolts I think are 13.

Sent from somewhere between here and there

 

[Heavy tech]

I think a lot of the supposed sae fasteners on modern vehicles are really metric and people just use sae on them


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[greasemonkey44]

They are 9/16 head and so forth; you seem like a learned guy so I'm saying this for others who don't know. The hash marks in the pictures designated the grade(quality/hardness etc) the fastener used according to sae standards; 3 marks for grade five and 5 for grade 8.
There are metric sizes close to these that will work; but tend to slip or feel rounded. A 9/16 is close to a 14 or 15, 7/16 is very close to 11 mm, and 1/2 is a tick smaller than 13mm.
The vehicle in the pictures is a 2000 gmc Sonoma; the water pump bolts and drive shaft to differential bolts

 

[lakota]

Two years ago I replaced the rear shocks on my 2004 Toyota RAV4 with Monroe Sensa Trac shocks. I was surprised that the top nuts on the Monroe's were SAE and not metric.

 

[finn]

Per SAE standards, all SAE (Society of Automotive Engineers) Technical papers are required to use metric units for weights and measurements.

Even SAE doesn't use SAE.

 

[zakmartin]

The Metric system is French.

Um.. yeah. I know.

 

[strutaeng]

Try driving to Mexico from the US: Trying to get used to using the Km/Hr scale on your speedometer, looking at the speed limit signs that say "110," pumping gas in liters and trying to figure out how much it costs "per US dollars per gallon" instead of "pesos per liter."

If you don't know your times tables carry a 4 function calculator

Seriously, like said before, US home products (lawnmowers, appliances, that's it!) will use SAE. Autos will use metric.

Get a basic set of SAE for when needed. If all fails, use an adjustable