Are you kidding?! Wait for warmer weather? Spawn's one of them-thar polar b'ahrs. She loves the Pacific in winter.
The Ranger
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14 years ago
Home Depot 1/4" Lag Screw
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14 years ago
My long wheelbase panel van, it's an event. I live closer to the Victor store, anyhow. It's only a couple miles to Lowe's.
To answer your question, though. Five or so miles. I try to plan trips ahead of time, and thier miserable parking lot is a real nonplusser. Same with Goodwill ABVI in Victor. Too many tight turns.
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14 years ago
Bend like the willow, don't break like the oak.
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14 years ago
A quality lag bolt would have split the wood.
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14 years ago
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The point is to have a larger pilot-hole in softer woods than hardwood to minimize the effort of installation but to ensure a full bite which can be marginal if use a full root diameter for pilot, particularly in softwoods that tend often to "crumble".
No claim made (at least by me) that there's any _precise_ ratio other than the aforementioned bigger/smaller based on the material.
I'd still wager there is some information at US FPL but I've not taken time to search for it.
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14 years ago
Heh....
Now that's a great debate. Wood vs metal. On its surface it seems simple, but....
Gentlemen, take your mark! ;)
nb
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14 years ago
Hmmm....
Seems like it would be the opposite, the softer wood requiring a smaller pilot hole for more compression in surrounding wood to "ensure" a solid bite in a wood that tends to "crumble".
nb
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14 years ago
It's in "Wood As An Engineering Material", Page 7-11. What they say is:
"For low-density softwoods, such as the cedars and white pines, 40% to 70% of the shank diameter; for Douglas-fir and Southern Pine, 60% to 75%; and for dense hardwoods, such as oaks, 65% to 85%. The smaller percentage in each range applies to lag screws of the smaller diameters and the larger percentage to lag screws of larger diameters."
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14 years ago
A quality lag bolt was purchased (stainless steel, US made) from a fastener store. The lag bolt was tightened up securely, but the wood is not split
Got any other "theories" Steve?
Jon
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14 years ago
Excellent reference, J. Thank you for posting that, it is very much appreciated!
The lag bolt which snapped off had an average shank diameter of 0.182". Sixty percent of this value is 0.1092, while seventy five percent of this value is 0.1365, which puts a pilot bit of 1/8" right in the middle.
Jon
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14 years ago
Your usual vehicle is a long van?
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14 years ago
Mea culpa...yes, that was inadvertent swap of the intent I didn't catch... :( sorry.
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14 years ago
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Indeed...thanks for saving me the effort... :)
Now if I just hadn't made the swap of sense in the relative sizes... :(
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14 years ago
What do you mean by "shank diameter"?
Machinery's Handbook lists the "body" or "shoulder" diameter of a 1/4" lag bolt as between .237" and .260". This is the area that is not threaded.
The "root diameter" is listed as .173". This is the diameter of the remaining cylinder after the threads are formed.
(American National Standard Square Lag Screws - ANSI/ASME B18.2.1-1996)
Regards,
Tom Watson
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14 years ago
Thanks Tom, I should have said the root diameter.
Jon
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14 years ago
I wonder if that material was written in modern years or 30 plus. I see lag screw failures galore.
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14 years ago
BUT Jon,,,,,, While it is a kewl reference that agrees with what you were using as a pilot hole, how did that work out for you?
The information could be out dated for readily available fasteners today. If might be a new publication using old data.
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14 years ago
The US has been out of the general fastener business for decades.
Had a couple of customers who were fastener manufacturers go belly up while I was still back in Cleveland, a town that was, at one time, a major fastener manufacturing center.
Most of the S/S comes in from India these days.
Lew
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14 years ago
It works out great, Leon, once I purchased lag bolts that weren't from the bulk bin at Home Depot. The bolts are currently holding up a home-made welded bracket, which in turn is holding up my bathroom sink.
The sink itself weighs maybe 20 or 30 pounds, so I tested the bracket by holding myself up with it, and it didn't budge.
Jon
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14 years ago
Got to hand it to him though, the kid was tough. It took about three weeks for the drill sargents (four of them ganged up on him) to entirely kick the "bad ass" attitude out of him. By that time though, they had already decided he wasn't going to graduate. They made his life hell for the entire cycle. Just before graduation, they sent him home. He was a source of entertainment though. Everyone kept track of "the adventures of Lewis". Most memorable was when we went to the gas chamber. Lewis had been given (intentionally) a defective mask. Upon entering the chamber, he started to gag, threw off his mask and ran for the door. The drill sargent kicked his mask into the far corner as another one, just outside the door, grabbed him and through him back in. They made him crawl around in there until he found his mask. When he did, he picked it up and again ran out the door. Again he was thrown back in, made to clear and seal his mask (which did not work). He did as he was told and then ran out the door again. Again, he was thrown back in. The drill sargent said "I didn't tell you to leave". He was made to stand there for a minute when the drill sargent told him to take off his mask and get out. Did I mention the 30 inch diameter oak just outside the door? Lewis, by this time not being able to see, met that tree at full speed.