Bad advice but 5 bolts really should be fine. But I didn’t officially tell you this
Krispythecat on
Drill it
Walrussl on
Give it to a machinist to repair, or order a new hub.
MrRabbit on
Give up now before you make it worse. Bring it to a good shop. They’ll drill it out probably. And hopefully be able to rethread it.
DigitalAnalogy on
There are stripped screw drill bits, but try using a rubber band with a screwdriver before you go out and buy the bit.
Place the rubber band flat over the head, push the driver in whatever slot is left and turn. The rubber band can help create some extra grip
RandomDude-017 on
Buy a New Bike
Kitchen-Literature-7 on
if you have a conical burr you might be able to get that hole centred up a bit better so you can continue to drill out the remainder of that fastener.
All else fails run 5 fasteners, weight weenies used to run 3.
Meowriano on
Easy out, drill and re tap, if you got the fuck its you could even through bolt it after drilling and forget about it.
pauip on
Drill it out. If the threads are too damaged to tap, drill it smooth and use a nut on the backside if you have room
SaidUnderWhere789 on
Have you already tried an EZ-Out or similar extractor set? Typically you would drill a bit more with a left-handed bit, then switch to a left-handed “grabber” bit that would back out the broken bolt.
But before, if you haven’t already, blast into the threads with a corrosion-attacking spray (even WD-40) and tap the bolt. Do several rounds of this over several hours.
Zesty_Raccoon843 on
Drill baby drill.
mihaak101 on
This can be extracted and retreaded with the proper tools. If you don’t have those, it’ll set you back a few bucks, but nowhere near the price of a hub.
rgcred on
IDK what was used to get this far but it looks like you used a drill. Suggest you use a drill smaller so as to not FU the threads. Slide a piece of metal behind that hole so when drill breaks through it doesn’t hit side of hub. If you can get a clean hole, try an ez-out to remove bolt. Even if you destroy the threads, it looks like you can use a nut behind the lug.
AmbassadorHopeful301 on
Drill it with a 4 mm drill. Add some WD40 and leave overnight. Carefully hammer an allen key through the hole and you should be able to drive it out…
Conscious_Sentient on
Get a tap and die set. You can make a smaller hole and thread it. Than use the new treaded hole to twist or pull it out. Or just get a screw driver and hammer it out. Be careful tho
Edit: if it’s a threaded hole already don’t hammer it I can’t tell if it is threaded already.
You’ll want to figure out what size bolt came out, most big box stores have a gauge set up in their hardware section so you can check and see what you’ve got. You can also pick up a replacement while you’re there.
To tap the hole, get some oil (cutting oil is best, motor oil, ATF, 3-in-1 works fine too) and lube both the hole and the tap. Go slowly, say an 1/8th or 1/4 turn at a time, then back it off and make another 1/8-1/4 turn as you feel resistance. Oil is your friend and its cheap so don’t skimp on it.
You might find the threads aren’t too bad and it goes quickly. Just don’t run the tap dry. Make sure the tap is going in straight!
Once you get the tap all the way through the hole, use a brush or compressed air to remove any chips left on the tap. You don’t want to drag that back through your freshly cleaned threads. Back the tap out and clean out the hole. Try your bolt and see if it goes in smoothly. If it does, you’re done. If it is catching, re-lubricate the hole and the tap and send it through again. Repeat cleaning, removal and test fit until the bolt goes in smoothly by hand.
edit – whatever oil you use, just make sure it’s not super thick. You don’t want the oil getting compressed in threads because it can’t escape and breaks your tap.
Jester2008 on
Could cut it with a dremel tool so you can get a good bite on it with a flathead and pull it out that way. Worked for me on a light fixture that looked similar
One-Bunch-3330 on
Heat it up and use an easy out to remove the remaining part of the bolt. The threads are shot either way. Only thing you can do next is to drill and tap new threads or try and install a helicoil if you can find one that small. But also by the time you’ve gone through all the trouble of doing so it may cost more than the hub itself. Could also look at buying a 6 bolt to center lock adaptor. Could also break out the tig welder and build up a weld on what’s still exposed and then weld a new bolt to that and then back it out that way. Or just do what others have said and run it with 5 and not worry about that little guy. If it ever happens again maybe try using a center punch with a small drill bit and then work your way up in bit size. That way you don’t have to worry about the drill bit walkin on ya.
edit: upon further inspection of the pictures I see you’ve already tried the hammer and chisel approach which has made getting it out even harder at this point and looking at the surrounding material you’ve already compromised the lug. So even if you were able to fix it there’s a possibility that it may break off entirely.
Substantial_Tough289 on
Drill thru it, remove it and re-thread if possible.
Didn’t told you this but if you can’t re-thread it use a nut behind it.
SocialWalkerx on
You’d be surprised at how well helicoils work for backing out a sheared screw. Mechanics of all types are often good at it because it’s a common thing. I did it on my ATV and had your reaction lol. I’m like “I ruined it. Throw the ATV away.” But it worked out 🙂
dizzymiggy on
Reverse fluted drill bit. If you are lucky it will just catch and remove the screw.
Raspry on
This is salvageable with a helicoil, it won’t be optimal but it’ll work, and still need to sort the hole out because it’ll be offcenter if you keep drilling. Or just run it with one less screw.
SteadyBalls on
Eat it
privpriv on
I never understood how people let it come to this level of fucked up, stubborness must be one helluva drug
Murky-Bluejay-1951 on
You will be perfectly fine with x5 new bolts in there, i always use M6x10 low head skt cap bolts instead of the poor quality dome bolts that normally come with the discs. Strong fasteners that use a 5mm hex key, thread locker and not too tight or you will strip the aluminium threads.
You could use a small extractor drill bit. They are drill bits with reversed threading that basically screw in with your drill going counterclockwise. When it is penetrated enough it will unscrew the broken bolt for you
28 Comments
Bad advice but 5 bolts really should be fine. But I didn’t officially tell you this
Drill it
Give it to a machinist to repair, or order a new hub.
Give up now before you make it worse. Bring it to a good shop. They’ll drill it out probably. And hopefully be able to rethread it.
There are stripped screw drill bits, but try using a rubber band with a screwdriver before you go out and buy the bit.
Place the rubber band flat over the head, push the driver in whatever slot is left and turn. The rubber band can help create some extra grip
Buy a New Bike
if you have a conical burr you might be able to get that hole centred up a bit better so you can continue to drill out the remainder of that fastener.
All else fails run 5 fasteners, weight weenies used to run 3.
Easy out, drill and re tap, if you got the fuck its you could even through bolt it after drilling and forget about it.
Drill it out. If the threads are too damaged to tap, drill it smooth and use a nut on the backside if you have room
Have you already tried an EZ-Out or similar extractor set? Typically you would drill a bit more with a left-handed bit, then switch to a left-handed “grabber” bit that would back out the broken bolt.
But before, if you haven’t already, blast into the threads with a corrosion-attacking spray (even WD-40) and tap the bolt. Do several rounds of this over several hours.
Drill baby drill.
This can be extracted and retreaded with the proper tools. If you don’t have those, it’ll set you back a few bucks, but nowhere near the price of a hub.
IDK what was used to get this far but it looks like you used a drill. Suggest you use a drill smaller so as to not FU the threads. Slide a piece of metal behind that hole so when drill breaks through it doesn’t hit side of hub. If you can get a clean hole, try an ez-out to remove bolt. Even if you destroy the threads, it looks like you can use a nut behind the lug.
Drill it with a 4 mm drill. Add some WD40 and leave overnight. Carefully hammer an allen key through the hole and you should be able to drive it out…
Get a tap and die set. You can make a smaller hole and thread it. Than use the new treaded hole to twist or pull it out. Or just get a screw driver and hammer it out. Be careful tho
Edit: if it’s a threaded hole already don’t hammer it I can’t tell if it is threaded already.
https://preview.redd.it/ayxha3flqaaf1.jpeg?width=3024&format=pjpg&auto=webp&s=ce082f7edb4e993d4bb556d509817e4bb18a7566
Ez out
https://preview.redd.it/7u1pshr6raaf1.png?width=519&format=png&auto=webp&s=36ba3c80a8347576495ec6d0370495e3cc587632
Follow this simple formula for a happy outcome.
Do you have a buddy with a drill press? That should come out pretty easily and then you can re-tap the hole. [https://www.harborfreight.com/hand-tools/specialty-hand-tools/tap-die-sets/metric-tap-die.html](https://www.harborfreight.com/hand-tools/specialty-hand-tools/tap-die-sets/metric-tap-die.html)
You’ll want to figure out what size bolt came out, most big box stores have a gauge set up in their hardware section so you can check and see what you’ve got. You can also pick up a replacement while you’re there.
To tap the hole, get some oil (cutting oil is best, motor oil, ATF, 3-in-1 works fine too) and lube both the hole and the tap. Go slowly, say an 1/8th or 1/4 turn at a time, then back it off and make another 1/8-1/4 turn as you feel resistance. Oil is your friend and its cheap so don’t skimp on it.
You might find the threads aren’t too bad and it goes quickly. Just don’t run the tap dry. Make sure the tap is going in straight!
Once you get the tap all the way through the hole, use a brush or compressed air to remove any chips left on the tap. You don’t want to drag that back through your freshly cleaned threads. Back the tap out and clean out the hole. Try your bolt and see if it goes in smoothly. If it does, you’re done. If it is catching, re-lubricate the hole and the tap and send it through again. Repeat cleaning, removal and test fit until the bolt goes in smoothly by hand.
edit – whatever oil you use, just make sure it’s not super thick. You don’t want the oil getting compressed in threads because it can’t escape and breaks your tap.
Could cut it with a dremel tool so you can get a good bite on it with a flathead and pull it out that way. Worked for me on a light fixture that looked similar
Heat it up and use an easy out to remove the remaining part of the bolt. The threads are shot either way. Only thing you can do next is to drill and tap new threads or try and install a helicoil if you can find one that small. But also by the time you’ve gone through all the trouble of doing so it may cost more than the hub itself. Could also look at buying a 6 bolt to center lock adaptor. Could also break out the tig welder and build up a weld on what’s still exposed and then weld a new bolt to that and then back it out that way. Or just do what others have said and run it with 5 and not worry about that little guy. If it ever happens again maybe try using a center punch with a small drill bit and then work your way up in bit size. That way you don’t have to worry about the drill bit walkin on ya.
edit: upon further inspection of the pictures I see you’ve already tried the hammer and chisel approach which has made getting it out even harder at this point and looking at the surrounding material you’ve already compromised the lug. So even if you were able to fix it there’s a possibility that it may break off entirely.
Drill thru it, remove it and re-thread if possible.
Didn’t told you this but if you can’t re-thread it use a nut behind it.
You’d be surprised at how well helicoils work for backing out a sheared screw. Mechanics of all types are often good at it because it’s a common thing. I did it on my ATV and had your reaction lol. I’m like “I ruined it. Throw the ATV away.” But it worked out 🙂
Reverse fluted drill bit. If you are lucky it will just catch and remove the screw.
This is salvageable with a helicoil, it won’t be optimal but it’ll work, and still need to sort the hole out because it’ll be offcenter if you keep drilling. Or just run it with one less screw.
Eat it
I never understood how people let it come to this level of fucked up, stubborness must be one helluva drug
You will be perfectly fine with x5 new bolts in there, i always use M6x10 low head skt cap bolts instead of the poor quality dome bolts that normally come with the discs. Strong fasteners that use a 5mm hex key, thread locker and not too tight or you will strip the aluminium threads.
https://preview.redd.it/60e3xncawaaf1.png?width=657&format=png&auto=webp&s=af7c5cab2f63c27101a84a0aadeba079b971160f
You could use a small extractor drill bit. They are drill bits with reversed threading that basically screw in with your drill going counterclockwise. When it is penetrated enough it will unscrew the broken bolt for you