M7 X 1 18 mm Screws for handle bars
11-08-23, 06:20 PM
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M7 X 1 18 mm Screws for handle bars
Where can I find M7 X 1 18 mm Screws for handle bars. All screws they sell are 20 mm. Cut to size?
11-08-23, 07:31 PM
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2mm is too little to cut off. If you have access to a bench grinder or belt sander, grind it down. Or file it.
Either way finish with a 45 degree chamfer to remove any burrs.
OTOH I doubt the maker works that close, so there's a good chance you don't have to do anything. Or probably can use a washer under the head.
Either way finish with a 45 degree chamfer to remove any burrs.
OTOH I doubt the maker works that close, so there's a good chance you don't have to do anything. Or probably can use a washer under the head.
11-09-23, 02:42 AM
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Thread a couple of nuts on the 20mm bolt, leaving the excess threads exposed.
Grind off the unneeded threads & file smooth a chamfered end.
spray some thin oil on to the screws threads & Slowly work one of the nuts completely off. Wipe the threads down with a clean rag & remove the remaining nut.
Otherwise go to a small fab shop & ask for the custom hardware to be made.
Grind off the unneeded threads & file smooth a chamfered end.
spray some thin oil on to the screws threads & Slowly work one of the nuts completely off. Wipe the threads down with a clean rag & remove the remaining nut.
Otherwise go to a small fab shop & ask for the custom hardware to be made.
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11-09-23, 05:14 AM
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What makes you think a manufacturer gets special 18mm bolts made?
11-09-23, 07:13 AM
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Possibly because he measured one.
In any case, there's no economic or other barrier to special length bolts in the volume that component makers would buy them. In fact, much of the hardware used on bikes is special or non-standard in some way or another.
As long as threads are standard, the minimum quantities for specials is surprisingly small.
In any case, there's no economic or other barrier to special length bolts in the volume that component makers would buy them. In fact, much of the hardware used on bikes is special or non-standard in some way or another.
As long as threads are standard, the minimum quantities for specials is surprisingly small.
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11-09-23, 10:43 AM
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I buy a regular supply of metric screws in bulk and I have never seen a supplier offer any L = 18mm.
It steps in 8, 10, 12, 16, 20, 25, and onwards in increments of +5mm.
Weird lengths may be original parts from the bike manufacterer, might be able to find that length from those pretty aftermarket titanium colored bolts.
And verify that it's really M7. That's an uncommon metric fastener, I've only seen it used for seatposts and barrel adjusters.
It steps in 8, 10, 12, 16, 20, 25, and onwards in increments of +5mm.
Weird lengths may be original parts from the bike manufacterer, might be able to find that length from those pretty aftermarket titanium colored bolts.
And verify that it's really M7. That's an uncommon metric fastener, I've only seen it used for seatposts and barrel adjusters.
11-12-23, 06:49 PM
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Thank you guys for your suggwestions. I used my dremel to cut bolts to the right length. It took some time and several cutting disks because they were titanium bolts. And they are M7x1mm for my Cannondale BadBoy '01 stem.
11-13-23, 12:36 AM
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Those tiny discs are just too fragile to do work on averaged thick metal materials.
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11-16-23, 09:15 AM
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I buy a regular supply of metric screws in bulk and I have never seen a supplier offer any L = 18mm.
It steps in 8, 10, 12, 16, 20, 25, and onwards in increments of +5mm.
Weird lengths may be original parts from the bike manufacterer, might be able to find that length from those pretty aftermarket titanium colored bolts.
And verify that it's really M7. That's an uncommon metric fastener, I've only seen it used for seatposts and barrel adjusters.
It steps in 8, 10, 12, 16, 20, 25, and onwards in increments of +5mm.
Weird lengths may be original parts from the bike manufacterer, might be able to find that length from those pretty aftermarket titanium colored bolts.
And verify that it's really M7. That's an uncommon metric fastener, I've only seen it used for seatposts and barrel adjusters.
While uncommon, I've seen a few stems with M7 fasteners. Look hard enough and you'll find all sorts of odd fasteners/threads used on bikes. 15 mm thru axles have to take the cake, though. I've seen (so far): M15x1.5, M15x1, M14x2, M14x1.5, M12x1.5, and 9/16"-24. 'Standards' FTW!
11-16-23, 10:21 AM
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I can tell you don't buy screws in bulk like I do.
Firstly, Mcmaster-Carr sells *everything* including weird stuff. Just because they have it in stock, doesn't make it common.
Secondly, they are very expensive to buy in quantity. Great for DIY, not so great for volume resellers like me.
Thirdly, I looked at their typical list of M5 and M6 allen key screws that I would use to service my bikes and still they only have one or two choices for 18mm.
https://www.mcmaster.com/products/sc...rement~metric/
Firstly, Mcmaster-Carr sells *everything* including weird stuff. Just because they have it in stock, doesn't make it common.
Secondly, they are very expensive to buy in quantity. Great for DIY, not so great for volume resellers like me.
Thirdly, I looked at their typical list of M5 and M6 allen key screws that I would use to service my bikes and still they only have one or two choices for 18mm.
https://www.mcmaster.com/products/sc...rement~metric/
11-16-23, 10:54 AM
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I can tell you don't buy screws in bulk like I do.
Firstly, Mcmaster-Carr sells *everything* including weird stuff. Just because they have it in stock, doesn't make it common.
Secondly, they are very expensive to buy in quantity. Great for DIY, not so great for volume resellers like me.
Thirdly, I looked at their typical list of M5 and M6 allen key screws that I would use to service my bikes and still they only have one or two choices for 18mm.
https://www.mcmaster.com/products/sc...rement~metric/
Firstly, Mcmaster-Carr sells *everything* including weird stuff. Just because they have it in stock, doesn't make it common.
Secondly, they are very expensive to buy in quantity. Great for DIY, not so great for volume resellers like me.
Thirdly, I looked at their typical list of M5 and M6 allen key screws that I would use to service my bikes and still they only have one or two choices for 18mm.
https://www.mcmaster.com/products/sc...rement~metric/
As for price, yeah, McMaster stinks if your plan is to resell. If you need something for a project/prototype and need it tomorrow, and maybe along with a bunch of other odds and ends, they are a great one-stop shop. Many bulk fastener places won't even talk to you about ordering less than 1000 pieces of something and may take 2 weeks to deliver. For the guy who needs <10, and soon, that's a non-starter regarding of the piece price. Someone looking for a set of stem screws probably falls into the latter category.
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