Must I keep welding these?
#1
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Must I keep welding these?
I can make these M8 seatpost binder bolts by welding a piece of spoke to it.
I'm looking for a bulk source for these where I can buy 50-100 per order.
I need only the bolt. I do not need the washer. I do not need the acorn nut.
There appears loads of them on auction sites, but I am not interested in buying retail as my target price for this bolt is under $1.
Ali appears to have only the upgraded binder bolt, which requires a tool on both sides, the same as using a regular M8 bolt and nut.
This binder bolt is commonly found on all big box store bikes from all eras, past to present.
The reason why I must include this binder bolt with the bikes that need it is because it eliminates calls I get from clients that only own one monkey wrench and they keep asking me how to stop the bolt from turning. Many resort to using pliers and screwdrivers and seriously scratch up their frame.
I'm looking for a bulk source for these where I can buy 50-100 per order.
I need only the bolt. I do not need the washer. I do not need the acorn nut.
There appears loads of them on auction sites, but I am not interested in buying retail as my target price for this bolt is under $1.
Ali appears to have only the upgraded binder bolt, which requires a tool on both sides, the same as using a regular M8 bolt and nut.
This binder bolt is commonly found on all big box store bikes from all eras, past to present.
The reason why I must include this binder bolt with the bikes that need it is because it eliminates calls I get from clients that only own one monkey wrench and they keep asking me how to stop the bolt from turning. Many resort to using pliers and screwdrivers and seriously scratch up their frame.
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You just need M8 hex head bolt? Try: https://www.mcmaster.com/products/sc...hread-size~m8/
Or grainger.com. There are Grainger outlets throughout and if you're lucky there's one near you.
All grades and lengths, packs of 25s, 50s...different materials, grades, fully or partially threaded, depending on length.
Or grainger.com. There are Grainger outlets throughout and if you're lucky there's one near you.
All grades and lengths, packs of 25s, 50s...different materials, grades, fully or partially threaded, depending on length.
Last edited by MudPie; 02-23-24 at 10:45 PM.
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I don't think I was clear.
I want to purchase the seatpost binder bolt only that has the lump in it.
There is a photo of it above.
I'm already taking plain M8 bolts and welding the lump to them.
I'm not looking for any sources for plain metric bolts.
I'm looking for any sources for M8 binder bolt only as pictured above.
I want to purchase the seatpost binder bolt only that has the lump in it.
There is a photo of it above.
I'm already taking plain M8 bolts and welding the lump to them.
I'm not looking for any sources for plain metric bolts.
I'm looking for any sources for M8 binder bolt only as pictured above.
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I don't think I was clear.
I want to purchase the seatpost binder bolt only that has the lump in it.
There is a photo of it above.
I'm already taking plain M8 bolts and welding the lump to them.
I'm not looking for any sources for plain metric bolts.
I'm looking for any sources for M8 binder bolt only as pictured above.
I want to purchase the seatpost binder bolt only that has the lump in it.
There is a photo of it above.
I'm already taking plain M8 bolts and welding the lump to them.
I'm not looking for any sources for plain metric bolts.
I'm looking for any sources for M8 binder bolt only as pictured above.
Sorry, I misunderstood and I missed the key feature under the bolt head.
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I can make these M8 seatpost binder bolts by welding a piece of spoke to it.
I'm looking for a bulk source for these where I can buy 50-100 per order.
I need only the bolt. I do not need the washer. I do not need the acorn nut.
There appears loads of them on auction sites, but I am not interested in buying retail as my target price for this bolt is under $1.
Ali appears to have only the upgraded binder bolt, which requires a tool on both sides, the same as using a regular M8 bolt and nut.
This binder bolt is commonly found on all big box store bikes from all eras, past to present.
The reason why I must include this binder bolt with the bikes that need it is because it eliminates calls I get from clients that only own one monkey wrench and they keep asking me how to stop the bolt from turning. Many resort to using pliers and screwdrivers and seriously scratch up their frame.
I'm looking for a bulk source for these where I can buy 50-100 per order.
I need only the bolt. I do not need the washer. I do not need the acorn nut.
There appears loads of them on auction sites, but I am not interested in buying retail as my target price for this bolt is under $1.
Ali appears to have only the upgraded binder bolt, which requires a tool on both sides, the same as using a regular M8 bolt and nut.
This binder bolt is commonly found on all big box store bikes from all eras, past to present.
The reason why I must include this binder bolt with the bikes that need it is because it eliminates calls I get from clients that only own one monkey wrench and they keep asking me how to stop the bolt from turning. Many resort to using pliers and screwdrivers and seriously scratch up their frame.
https://www.brandscycle.com/product/sunlite-hex-head-seat-binder-bolt-and-nut-324707-1.htm?variations=1396791,1396635&gad_source=1&gclid=Cj0KCQiAxOauBhCaARIsAEbUSQT_9sz_9deXTWcw0L6w7Fja aXggRtd681Bu5925U3HRUnXrE5XG0w8aApNPEALw_wcB
Here is another for $1.30 each
https://carsoncitybikeshop.com/seat-...UaAvA7EALw_wcB
Sunlite 51190
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Last edited by JoeTBM; 02-24-24 at 04:55 AM. Reason: Added another supply source
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Sunlite is a brand of J&B Importers,
https://www.jbi.bike/site/contact.php
https://www.jbi.bike/site/contact.php
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This used to be extremely common. It was used on virtually all Raleigh bikes for half a century, along with many other European bikes using similar seat lugs.
Find any shop that's more than 30 years old. Ask them where they buy them.
Find any shop that's more than 30 years old. Ask them where they buy them.
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Sunlite is a brand of J&B Importers,
https://www.jbi.bike/site/contact.php
https://www.jbi.bike/site/contact.php
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I won't do the math but I wonder if using a common cap screw and giving away the hex wrench too might be cheaper? Or if you're good with welding 100 bolts just add a short length of bar stock as a wing nut on the bolt head, again on a cheaply sourced common (and non zinc coated) bolt available in quantity packages for $0.25 each (or so). Andy
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I won't do the math but I wonder if using a common cap screw and giving away the hex wrench too might be cheaper? Or if you're good with welding 100 bolts just add a short length of bar stock as a wing nut on the bolt head, again on a cheaply sourced common (and non zinc coated) bolt available in quantity packages for $0.25 each (or so). Andy
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Usually if I run into a similar situation I go into my local hardware distributor/retailer & put an order together. It's rare to expect they'll have what I want on hand, but they have yet to let me down getting the order fulfilled.
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Just asking, Seems like you addressed the person that got it wrong, but didn't address BTinNYC that seems to have suggested a reasonable substitute. They have the lug and come in different lengths.
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The reason why I must include this binder bolt with the bikes that need it is because it eliminates calls I get from clients that only own one monkey wrench and they keep asking me how to stop the bolt from turning. Many resort to using pliers and screwdrivers and seriously scratch up their frame.
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No.
They're made for what was for decades the most common style of seat tube lug. The same basic design was used globally for decades.
The ears had a single notch used to key the bolt made for the job. BITD we bought these by the thousands from Eldi.
They're made for what was for decades the most common style of seat tube lug. The same basic design was used globally for decades.
The ears had a single notch used to key the bolt made for the job. BITD we bought these by the thousands from Eldi.
Last edited by FBinNY; 02-25-24 at 11:21 AM.
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#19
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I commend your weld fabrication of similar.
I recognize the bolt from my childhood cheap and vintage bikes, some of my bikes had that projection all the way across to the other side I think. But come to think of it, I don't have a single bike now with that feature, either the frame is female threaded or insert-nut on the left side into a hex hole for bolt entering on the right, or no bolt and they use a "turtleneck" top, either quick-release or with bolt.
I recognize the bolt from my childhood cheap and vintage bikes, some of my bikes had that projection all the way across to the other side I think. But come to think of it, I don't have a single bike now with that feature, either the frame is female threaded or insert-nut on the left side into a hex hole for bolt entering on the right, or no bolt and they use a "turtleneck" top, either quick-release or with bolt.
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I wonder if the OP found what they wanted.
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I think he meant both sides, not both ends.
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An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FB
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An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
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No help to anybody here but fun - My Peugeot UO-8 that started my journey on road bikes in 1967 died on a car door 25 years later. The plain steel seatpin got tossed in a box. Then I realized I was getting tired of fussing with my Campy bolt which 1) was lousy with the brake cable hanger I used for my Mooney's cantis and 2) over time broke because of the poor fit with that hanger. "Duh! I've the right pin! Pulled it out, cut it to size and used it for the next 30 years. Now honorably retired.