10-15-2018, 10:07 PM | #1 |
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Timber bolts
Trying to find 5/16 X 4" timber bolts for the bottom wood on my DD. Can't find them anywhere. Got all excited when i read the thread on the wind wing bolts and someone mentioned "bolt depot" so I checked and they don't have them. I could use carriage bolts or even regular bolts with washers I suppose but would sure like to find timber bolts like the originals. Any thoughts on where to find them? What do others use if timber bolts can't be had?.
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10-15-2018, 10:15 PM | #2 |
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Re: Timber bolts
How about a picture in case we know them by another name? I have never heard of timber bolts, but I have lead a sheltered life.
Charlie Stephens |
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10-16-2018, 12:05 AM | #3 |
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Re: Timber bolts
Timber bolts are similar to carriage bolts but wider head. Truth is i didn't know what they were called until I looked them up here on the bolt depot and found them (only not long enough). https://www.boltdepot.com/Carriage_b...low_bolts.aspx
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10-16-2018, 04:38 AM | #4 |
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Re: Timber bolts
Would elevator bolts work?
I never heard of timer bolts until today. Maybe FASTENAL has them. |
10-16-2018, 06:28 AM | #5 |
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Re: Timber bolts
Suggest you try someone who installs overhead doors. I recall seeing a carriage bolt used on fastening hinges that has a flat head with no crown. I don't remember if the head was broader than those on conventional carriage bolts. May or may not serve your purpose, but may be worth a look.
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10-16-2018, 07:24 AM | #6 |
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Re: Timber bolts
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10-16-2018, 07:32 AM | #7 |
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Re: Timber bolts
Brent is correct (as usual) they are step bolts. New step bolts do not have quite as big of head as the old ones (For those who are anal!!
I think I may have a slew of originals as well as repos. If you want me to check, come back directly to [email protected] |
10-17-2018, 11:02 AM | #8 |
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Re: Timber bolts
Thanks Brent. I looked them up and, yes, "step bolts" are more like what came off the A as they have the square like a carriage bolt rather then the fins like the timber bolts. I've checked all over the net and have yet to find any (of either style) longer than 3" in 5/16 and I need 4". Looks like i will have to make some. Shouldn't be too difficult. Rather than building them out with a welder and turning them down on a lathe, It looks like there should be enough material in the head of a carriage bolt (they are quite a bit thicker) to just forge the head out wider and thinner like the step bolts. I suspect the reason for the wider head is for more support so that the bolt head will resist working into the wood and becoming loose over time. That being the case, another option is to glue the boards together as well as bolt them (on final assembly of course lol) and use regular bolts with large washers, countersunk 1/4" to avoid any clearance issues. This would likely be better than just using step bolts like originally from a structural standpoint.
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10-17-2018, 12:42 PM | #9 |
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Re: Timber bolts
One quick question...where do 4" bolts go on a DD. I did one of those several years back for a fellow and don't remember bolts that long. Many of the holes countersink to allow the nut and washer to mount up in the wood.
Just curious |
10-17-2018, 02:15 PM | #10 | |
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Re: Timber bolts
Quote:
Hillman 240114 Carriage Bolt, 5/16 x 4-Inch, Steel, Zinc-Plated, Silver, 50-Pack It is not flat but is as close as possible. |
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10-17-2018, 11:09 PM | #11 |
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Re: Timber bolts
The bolts that go up through the sill plate and hold the cross members in place. Sill plate is 1 1/4", cross member is 2 3/4" for 4 inches of wood to pass through. Cross member counter sunk 3/8" for the washer/nut.
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10-17-2018, 11:12 PM | #12 |
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Re: Timber bolts
I don't know if the head on regular carriage bolts are wide enough but I may be able to forge them out but I would only do so if I can get carriage bolts that are NOT threaded all the way and in plain black finish but thanks anyway. I appreciate the suggestion.
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10-18-2018, 06:29 AM | #13 |
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Re: Timber bolts
Consider buying the shorter bolts, cut off the heads leaving an inch of the bolt on the head. Then cut the hex head off a standard bolt and weld the two together to make the correct length. Grind smooth and coat the welded area with zinc. Seems easier to me than trying to forge a new head.
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10-18-2018, 09:52 AM | #14 | |
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Re: Timber bolts
Quote:
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