Dumb Question on Metric Bolts - Page 3 - Fiberglass RV


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Old 04-04-2013, 11:37 AM   #29
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Sae or metric is not that difficult. You pick up your sae wrenches and try to find the right size. Then you go through all your metric wrenches to no avail. Then you pick up an adjustable and quickly round over the corners before grabbing your locking wrench. Ahhh!

Good point. I keep both a metric crescent wrench and metric vice grips handy. They augment my left handed screwdriver set, nicely.
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Old 04-04-2013, 11:50 AM   #30
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The 1-3/4"X3-9/16" 2by replaced the original sawn stud which was indeed roughly 2 by 4". Multi head mill planers made it possible to surface lumber very efficiently to consistent dimension and rectilinearity. Now the numbers are 1-1/2X3-1/2 in the U.S. A S4S nominal 2X4. To underscore Jim's comment, I've seen frame houses with sawn studs and joists dating from as recently as the late 30s.

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Old 04-04-2013, 12:12 PM   #31
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I notice Ian uses decimal inch, another bastard multi-modulus system, which is nonetheless so much faster in computation than fractional inch as to make me wonder why I was ever borne in a country that got rid of a king, kept his foot, and then divvied almost everything up by the methods of ancient geometry?

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Old 04-04-2013, 12:12 PM   #32
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The only reason that Canada has not gone completely metric in the building industry is due to the amount of export of lumber goods to the US. I too have built homes for a brief period using metric lumber, though the studs were the same size, just called 38x89 instead of 2x4, but the plywood was in metric sizes, 1200x2400. Our stud spacing was either 400 or 600 O.C.

Being in the construction industry, both through education, work experience, and now owning a custom building and renovation company, I sure wish we had of stuck to our guns, and completely embraced the metric system, as it is WAY simpler than using imperial.

Having all measurements based on the most common substance in the world, water, makes things a lot easier.
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Old 04-04-2013, 12:20 PM   #33
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I notice Ian uses decimal inch, another bastard multi-modulus system, which is nonetheless so much faster in computation than fractional inch as to make me wonder why I was ever borne in a country that got rid of a king, kept his foot, and then divvied almost everything up by the methods of ancient geometry?

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I have done lots of surveying, and before metric was implemented, most measurements were in fractional feet, not inches. This metricizing of imperial units made measuring and adding lengths together much easier. Basically, a measurement like 1'-4 9/16" would be shown as 1.3802 feet.

Adding together various fractional measurements is a real pain in the tush, whereas with metric it is real easy.

Most engineering in the US is done with metric too.
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Old 04-04-2013, 12:43 PM   #34
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Think it's a question of suitability to the scale of the item in question. Decimal inch focuses in tight on customary machinist practise at a very restricted scale. Surveying has longer vistas. At some futuristic scale, we would talk decimal parsecs. And we'd most likely still be trying to cut the pie in six or eight.

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Old 04-04-2013, 01:28 PM   #35
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Quote:
Originally Posted by james kent View Post
Sae or metric is not that difficult. You pick up your sae wrenches and try to find the right size. Then you go through all your metric wrenches to no avail. Then you pick up an adjustable and quickly round over the corners before grabbing your locking wrench. Ahhh!
I probably wouldn't want to rebuild an engine with one of these, but it serves me very well for an in-a-pinch socket for my traveling kit.

Universal Socket



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Old 04-04-2013, 03:08 PM   #36
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When I built my house all the plywood was stamped with very odd fractional thicknesses i.e. 15/32 or 23/32. At first I though it was like the 15 oz. pound of coffee until I spotted MADE IN CANADA. I guess they felt the need to translate.

In regard to hardware, try finding metric thread rod at your local US hardware store. Raz
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Old 04-04-2013, 03:23 PM   #37
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Thank god we have a fastenal and wurth here.
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Old 04-04-2013, 04:00 PM   #38
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Peter, what you describe is the translation (transnumeration?) of a metric measurement into fractional inch. Curse of box bodger and laminate slammer. Want a box to finish 24"by 24" finish dimension? Looks simple but more than you think will go "nominal" by considering 23/32nds as close enuf to 3/4" thickness. So they cut two sides 22-1/2 width to butt and a front and back 24" to overlap, bang it together and it finishes at 23-15/16s X 24. If they alternate between butt and overlap and cut both width and length 23-1/4, the box comes out only a 32nd under in both width and length and is least potentially square. These days you tell a staple gun artiste fresh out of a UBC&J apprentice program to factor in setback for sheet laminate to yield a finished dimension and you won't have hair left by the end of the workday!

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Old 04-04-2013, 04:33 PM   #39
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Speaking of Milk. Its weird but in Bellingham you will see Canadians come down here to Costco and buy gallons of Milk by the pallet. Costco has a whole fridge room set up just for milk. And watch out when you get in a gas line because there will be some dude with 6 or 8 Gerry cans filling up with gas in his trunk. God forbid he gets hit in the rear end on the way back North.
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Old 04-04-2013, 04:33 PM   #40
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Metric speed is "ROUGHLY" 6/10 mph. So therefore 90 Canuck kilometres per hour (kph)= approximately 54mph which is close enough to be called 55. Simple enough to to whilst one is driving.
Maybe some day I'll actually get the hang of the durn thing. In the mean time...... It's good enough for this ol guy.
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Old 04-04-2013, 04:41 PM   #41
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The 6mi. per 10K has always been a good enuf conversion ratio for me. Got started on this because of bike time trials. Couldn't think in kilometers.

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Old 04-04-2013, 05:08 PM   #42
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OP here. I appreciate all the answers. I guess the bottom line is that I won't bother to go to Canada to buy bolts or wood studs.
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