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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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How to remove coach bolts
I'm trying to dismantle one of those outdoor swings - like a wooden sofa suspended on chains from a wooden framework with A shaped supports at either end.
The bits of timber are attached with what I think are called coach bolts - a domed head with a square bit underneath. The problem is that the bolts are recessed down a hole. I can turn the nut with a socket set but because it's a all a bit rusty and seized up the head of the bolt turns as well and I can't get hold of it to stop it because the head is domed and down a hole. Any ideas how I can get hold of the head to stop it turning? |
#2
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How to remove coach bolts
On 02/03/2019 21:32, Murmansk wrote:
I'm trying to dismantle one of those outdoor swings - like a wooden sofa suspended on chains from a wooden framework with A shaped supports at either end. The bits of timber are attached with what I think are called coach bolts - a domed head with a square bit underneath. The problem is that the bolts are recessed down a hole. I can turn the nut with a socket set but because it's a all a bit rusty and seized up the head of the bolt turns as well and I can't get hold of it to stop it because the head is domed and down a hole. Any ideas how I can get hold of the head to stop it turning? Weld a bit of L shaped bar to the head to act as a handle then cut it off to do the next one and so on? |
#3
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How to remove coach bolts
Bob Minchin wrote
Murmansk wrote I'm trying to dismantle one of those outdoor swings - like a wooden sofa suspended on chains from a wooden framework with A shaped supports at either end. The bits of timber are attached with what I think are called coach bolts - a domed head with a square bit underneath. The problem is that the bolts are recessed down a hole. I can turn the nut with a socket set but because it's a all a bit rusty and seized up the head of the bolt turns as well and I can't get hold of it to stop it because the head is domed and down a hole. Any ideas how I can get hold of the head to stop it turning? Weld a bit of L shaped bar to the head to act as a handle Not easy to do with the head down a hole. then cut it off to do the next one and so on? |
#4
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Lonely Psychotic Senile Ozzie Troll Alert! LOL
On Sun, 3 Mar 2019 09:04:26 +1100, cantankerous trolling senile geezer Rot
Speed blabbered, again: Weld a bit of L shaped bar to the head to act as a handle Not easy to do with the head down a hole. Or, as in your case, with your head eternally up your arse! -- Bill Wright to Rot Speed: "That confirms my opinion that you are a despicable little ****." MID: |
#6
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How to remove coach bolts
Murmansk wrote
I'm trying to dismantle one of those outdoor swings - like a wooden sofa suspended on chains from a wooden framework with A shaped supports at either end. The bits of timber are attached with what I think are called coach bolts - a domed head with a square bit underneath. Yes, thats a coach bolt. Originally used on real coaches, The problem is that the bolts are recessed down a hole. I can turn the nut with a socket set but because it's a all a bit rusty and seized up the head of the bolt turns as well and I can't get hold of it to stop it because the head is domed and down a hole. Any ideas how I can get hold of the head to stop it turning? You can drill a hole into the dome, into the square knob thing under the dome and put a thing a bit like a thread tap, but tapered, forget the name, into that hole and put a spanner on the square end of the thing I cant think of the name of. |
#7
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How to remove coach bolts
"2987fr" wrote in message ... Murmansk wrote I'm trying to dismantle one of those outdoor swings - like a wooden sofa suspended on chains from a wooden framework with A shaped supports at either end. The bits of timber are attached with what I think are called coach bolts - a domed head with a square bit underneath. Yes, thats a coach bolt. Originally used on real coaches, The problem is that the bolts are recessed down a hole. I can turn the nut with a socket set but because it's a all a bit rusty and seized up the head of the bolt turns as well and I can't get hold of it to stop it because the head is domed and down a hole. Any ideas how I can get hold of the head to stop it turning? You can drill a hole into the dome, into the square knob thing under the dome and put a thing a bit like a thread tap, but tapered, forget the name, into that hole and put a spanner on the square end of the thing I cant think of the name of. Screw extractor. https://au.element14.com/duratool/d00163/screw-extractor-5pc/dp/1447442?gclid=CjwKCAiA8OjjBRB4EiwAMZe6y4XZC9O9zB7T U938haUZgFlHRX8W0s0Js-AG7P5pXAKFfBs3KnxwQhoCAlYQAvD_BwE&gross_price=true &mckv=s_dc|pcrid|333874817699|pkw||pmt||slid||prod uct|1447442|pgrid|66778631243|ptaid|pla-293946777986|&CMP=KNC-GOO-SHOPPING-1447442# |
#8
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How to remove coach bolts
"2987fr" wrote in message ... Murmansk wrote I'm trying to dismantle one of those outdoor swings - like a wooden sofa suspended on chains from a wooden framework with A shaped supports at either end. The bits of timber are attached with what I think are called coach bolts - a domed head with a square bit underneath. Yes, that's a coach bolt. Originally used on real coaches, The problem is that the bolts are recessed down a hole. I can turn the nut with a socket set but because it's a all a bit rusty and seized up the head of the bolt turns as well and I can't get hold of it to stop it because the head is domed and down a hole. Any ideas how I can get hold of the head to stop it turning? You can drill a hole into the dome, into the square knob thing under the dome and put a thing a bit like a thread tap, but tapered, forget the name, into that hole and put a spanner on the square end of the thing I cant think of the name of. Once youve drilled a sufficiently large hole in the head it will separate from the shank and you should be able to punch the bolt through to the other side, ideally (or ironically) using a similarly sized bolt using the mushroom head to take the impact. michael adams .... |
#9
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How to remove coach bolts
"michael adams" wrote in message ... "2987fr" wrote in message ... Murmansk wrote I'm trying to dismantle one of those outdoor swings - like a wooden sofa suspended on chains from a wooden framework with A shaped supports at either end. The bits of timber are attached with what I think are called coach bolts - a domed head with a square bit underneath. Yes, that's a coach bolt. Originally used on real coaches, The problem is that the bolts are recessed down a hole. I can turn the nut with a socket set but because it's a all a bit rusty and seized up the head of the bolt turns as well and I can't get hold of it to stop it because the head is domed and down a hole. Any ideas how I can get hold of the head to stop it turning? You can drill a hole into the dome, into the square knob thing under the dome and put a thing a bit like a thread tap, but tapered, forget the name, into that hole and put a spanner on the square end of the thing I cant think of the name of. Once youve drilled a sufficiently large hole in the head it will separate from the shank Not with the smallest screw extractor and that's just the one hole. If you drill a big enough hole to see the head come off, you'd need to drill a number of increasing sized holes. and you should be able to punch the bolt through to the other side, ideally (or ironically) using a similarly sized bolt using the mushroom head to take the impact. |
#10
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Lonely Psychotic Senile Ozzie Troll Alert! LOL
On Sun, 3 Mar 2019 11:38:30 +1100, cantankerous trolling senile geezer Rot
Speed blabbered, again: Once youve drilled a sufficiently large hole in the head it will separate from the shank Not with the smallest screw extractor and that's just the one hole. If you drill a big enough hole to see the head come off, you'd need to drill a number of increasing sized holes. Senile Ozzietard knows it all better, again and again and again... LMAO -- Bod addressing abnormal senile quarreller Rot: "Do you practice arguing with yourself in an empty room?" MID: |
#11
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More Heavy Trolling by Senile Nym-Shifting Rot Speed!
On Sun, 3 Mar 2019 08:59:27 +1100, 2987fr, better known as cantankerous
trolling senile geezer Rot Speed, wrote: You can drill a hole into the dome, Someone obviously drilled a hole in your dome, senile Ozzietard! BG -- Norman Wells addressing senile Rot: "Ah, the voice of scum speaks." MID: |
#12
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How to remove coach bolts
A friend of mine,no longer with use called it his bodger...
However a lot of coach bolts tend to be quite soft and it won't work very well. Brian -- ----- -- This newsgroup posting comes to you directly from... The Sofa of Brian Gaff... Blind user, so no pictures please Note this Signature is meaningless.! "2987fr" wrote in message ... Murmansk wrote I'm trying to dismantle one of those outdoor swings - like a wooden sofa suspended on chains from a wooden framework with A shaped supports at either end. The bits of timber are attached with what I think are called coach bolts - a domed head with a square bit underneath. Yes, that's a coach bolt. Originally used on real coaches, The problem is that the bolts are recessed down a hole. I can turn the nut with a socket set but because it's a all a bit rusty and seized up the head of the bolt turns as well and I can't get hold of it to stop it because the head is domed and down a hole. Any ideas how I can get hold of the head to stop it turning? You can drill a hole into the dome, into the square knob thing under the dome and put a thing a bit like a thread tap, but tapered, forget the name, into that hole and put a spanner on the square end of the thing I cant think of the name of. |
#13
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How to remove coach bolts
Very often you can get the squared end to re-engage with the wood by hammering the domed end further into the wood. The only problem might be if the nut is badly rusted on it will simply start to turn again once any torque is applied. Worth a try along with a good dosing of easing oil on the nut, you will not be in a worse position if it does not work.
Richard |
#14
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How to remove coach bolts
On 03/03/2019 09:07, Tricky Dicky wrote:
Very often you can get the squared end to re-engage with the wood by hammering the domed end further into the wood. The only problem might be if the nut is badly rusted on it will simply start to turn again once any torque is applied. Worth a try along with a good dosing of easing oil on the nut, you will not be in a worse position if it does not work. ....and possibly in a _better_ position - to cut the bolt above the nut and then drive it out -- Robin reply-to address is (intended to be) valid |
#15
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How to remove coach bolts
Brian Gaff wrote
A friend of mine,no longer with use called it his bodger... Someone I know has the name of greg bodger. Cant imagine what his ancestors got up to for the life of me. However a lot of coach bolts tend to be quite soft and it won't work very well. It will in fact work fine. "2987fr" wrote in message ... Murmansk wrote I'm trying to dismantle one of those outdoor swings - like a wooden sofa suspended on chains from a wooden framework with A shaped supports at either end. The bits of timber are attached with what I think are called coach bolts - a domed head with a square bit underneath. Yes, that's a coach bolt. Originally used on real coaches, The problem is that the bolts are recessed down a hole. I can turn the nut with a socket set but because it's a all a bit rusty and seized up the head of the bolt turns as well and I can't get hold of it to stop it because the head is domed and down a hole. Any ideas how I can get hold of the head to stop it turning? You can drill a hole into the dome, into the square knob thing under the dome and put a thing a bit like a thread tap, but tapered, forget the name, into that hole and put a spanner on the square end of the thing I cant think of the name of. |
#16
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How to remove coach bolts
"Rod Speed" wrote in message ... Brian Gaff wrote A friend of mine,no longer with use called it his bodger... Someone I know has the name of greg bodger. Cant imagine what his ancestors got up to for the life of me. Presumably they lived in huts* in the woods around High Wycombe and made Windsor Chairs.** Bodging use to mean using a high level of skill to make highly practical objects using a very restricted range of tools. Unfortunately those skills didn't necessarily incorporate very much business sense and so they never got rich as a result. It's only latterly that its come to mean making a Horlicks of something. The High Wycombe furniture business was revived in the 1920's by a chap called Lucian Ercolani. Although they also made Windsor Chairs he wasn't himself descended from bodgers. The clue is in the name. michael adams * At a time when most other yokels lived in similar or worse ** Chairs where all the joints consisted of turned ends fitted into augered holes. And chair seats were fashioned with spokeshaves. .... |
#17
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How to remove coach bolts
In message , michael
adams writes Bodging use to mean using a high level of skill to make highly practical objects using a very restricted range of tools. Unfortunately those skills didn't necessarily incorporate very much business sense and so they never got rich as a result. It's only latterly that its come to mean making a Horlicks of something. Only by those who really mean 'botch'. There's a world of a difference between the two -- Ian |
#18
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How to remove coach bolts
michael adams wrote
Rod Speed wrote Brian Gaff wrote A friend of mine,no longer with use called it his bodger... Someone I know has the name of greg bodger. Cant imagine what his ancestors got up to for the life of me. That was a joke, joyce. Presumably they lived in huts* in the woods around High Wycombe and made Windsor Chairs.** This is rather more plausible, because those doing your bodging would have got their surnames long before their descendents did much bodging. https://www.houseofnames.com/bodger-family-crest Bodging use to mean using a high level of skill to make highly practical objects using a very restricted range of tools. Unfortunately those skills didn't necessarily incorporate very much business sense and so they never got rich as a result. It's only latterly that its come to mean making a Horlicks of something. The High Wycombe furniture business was revived in the 1920's by a chap called Lucian Ercolani. Although they also made Windsor Chairs he wasn't himself descended from bodgers. The clue is in the name. And I bet no one he employed had a surname of bodger. * At a time when most other yokels lived in similar or worse ** Chairs where all the joints consisted of turned ends fitted into augered holes. And chair seats were fashioned with spokeshaves. |
#19
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Lonely Psychotic Senile Ozzie Troll Alert! LOL
On Sun, 3 Mar 2019 20:17:15 +1100, cantankerous trolling senile geezer Rot
Speed blabbered, again: A friend of mine,no longer with use called it his bodger... Someone I know has the name of greg bodger. Make that someone IMAGINARY you pretend to know, you forsaken psychopathic swine! -- Richard addressing Rot Speed: "**** you're thick/pathetic excuse for a troll." MID: |
#20
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How to remove coach bolts
Murmansk has brought this to us :
Any ideas how I can get hold of the head to stop it turning? Centre pop the middle of the dome, then drill into it with progressivly larger drill bits, to the thickness of the thread. The dome will then come free and the rest of the bolt pulled out. It the head tries to turn as you drill, clamp the nut with a mole grip. |
#21
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How to remove coach bolts
On 2019-03-02 3:06 p.m., Harry Bloomfield wrote:
Murmansk has brought this to us : Any ideas how I can get hold of the head to stop it turning? Centre pop the middle of the dome, then drill into it with progressivly larger drill bits, to the thickness of the thread. The dome will then come free and the rest of the bolt pulled out. It the head tries to turn as you drill, clamp the nut with a mole grip. cut it off with a torch |
#22
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How to remove coach bolts
"%" wrote in message ... On 2019-03-02 3:06 p.m., Harry Bloomfield wrote: Murmansk has brought this to us : Any ideas how I can get hold of the head to stop it turning? Centre pop the middle of the dome, then drill into it with progressivly larger drill bits, to the thickness of the thread. The dome will then come free and the rest of the bolt pulled out. It the head tries to turn as you drill, clamp the nut with a mole grip. cut it off with a torch Much harder to do with it down a hole as he said the heads are. |
#23
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How to remove coach bolts
Rod Speed wrote:
"%" wrote in message ... On 2019-03-02 3:06 p.m., Harry Bloomfield wrote: Murmansk has brought this to us : Any ideas how I can get hold of the head to stop it turning? Centre pop the middle of the dome, then drill into it with progressivly larger drill bits, to the thickness of the thread. The dome will then come free and the rest of the bolt pulled out. It the head tries to turn as you drill, clamp the nut with a mole grip. cut it off with a torch Much harder to do with it down a hole as he said the heads are. The nut end |
#24
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How to remove coach bolts
"FMurtz" wrote in message ... Rod Speed wrote: "%" wrote in message ... On 2019-03-02 3:06 p.m., Harry Bloomfield wrote: Murmansk has brought this to us : Any ideas how I can get hold of the head to stop it turning? Centre pop the middle of the dome, then drill into it with progressivly larger drill bits, to the thickness of the thread. The dome will then come free and the rest of the bolt pulled out. It the head tries to turn as you drill, clamp the nut with a mole grip. cut it off with a torch Much harder to do with it down a hole as he said the heads are. The nut end Better to do that with a nut cracker or a multitool so you don't **** the wood. |
#25
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Lonely Psychotic Senile Ozzie Troll Alert! LOL
On Sun, 3 Mar 2019 11:45:32 +1100, cantankerous trolling senile geezer Rot
Speed blabbered, again: cut it off with a torch Much harder to do with it down a hole as he said the heads are. Senile Ozzietard knows it all better, again and again and again... LMAO -- about senile Rot Speed: "This is like having a conversation with someone with brain damage." MID: |
#26
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How to remove coach bolts
Murmansk Wrote in message:
I'm trying to dismantle one of those outdoor swings - like a wooden sofa suspended on chains from a wooden framework with A shaped supports at either end. The bits of timber are attached with what I think are called coach bolts - a domed head with a square bit underneath. The problem is that the bolts are recessed down a hole. I can turn the nut with a socket set but because it's a all a bit rusty and seized up the head of the bolt turns as well and I can't get hold of it to stop it because the head is domed and down a hole. Any ideas how I can get hold of the head to stop it turning? Cut the nut end off ? Angle grinder, hacksaw, multi tool? -- Jim K ----Android NewsGroup Reader---- http://usenet.sinaapp.com/ |
#27
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How to remove coach bolts
"Jim K.." wrote in message ... Murmansk Wrote in message: I'm trying to dismantle one of those outdoor swings - like a wooden sofa suspended on chains from a wooden framework with A shaped supports at either end. The bits of timber are attached with what I think are called coach bolts - a domed head with a square bit underneath. The problem is that the bolts are recessed down a hole. I can turn the nut with a socket set but because it's a all a bit rusty and seized up the head of the bolt turns as well and I can't get hold of it to stop it because the head is domed and down a hole. Any ideas how I can get hold of the head to stop it turning? Cut the nut end off ? Angle grinder, hacksaw, multi tool? Indeed. Or use one of these; £6.50 for the pair https://www.toolstation.com/nut-splitter-set/p80007 michael adams .... |
#28
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How to remove coach bolts
In message , michael
adams writes "Jim K.." wrote in message ... Murmansk Wrote in message: I'm trying to dismantle one of those outdoor swings - like a wooden sofa suspended on chains from a wooden framework with A shaped supports at either end. The bits of timber are attached with what I think are called coach bolts - a domed head with a square bit underneath. The problem is that the bolts are recessed down a hole. I can turn the nut with a socket set but because it's a all a bit rusty and seized up the head of the bolt turns as well and I can't get hold of it to stop it because the head is domed and down a hole. Any ideas how I can get hold of the head to stop it turning? Cut the nut end off ? Angle grinder, hacksaw, multi tool? Indeed. Or use one of these; £6.50 for the pair https://www.toolstation.com/nut-splitter-set/p80007 I've never used a nut-splitter before. Even if it doesn't actually crack the nut, I guess that it might distort it slightly (especially if used repeatedly at several angles) and break the rust in the threads - allowing penetrating oil to get in better. ... -- Ian |
#29
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How to remove coach bolts
On 02/03/2019 21:32, Murmansk wrote:
I'm trying to dismantle one of those outdoor swings - like a wooden sofa suspended on chains from a wooden framework with A shaped supports at either end. The bits of timber are attached with what I think are called coach bolts - a domed head with a square bit underneath. The problem is that the bolts are recessed down a hole. I can turn the nut with a socket set but because it's a all a bit rusty and seized up the head of the bolt turns as well and I can't get hold of it to stop it because the head is domed and down a hole. Any ideas how I can get hold of the head to stop it turning? Altogether, one, two, three: ANGLEGRINDER!!! Seriously - and maybe this is what Jim was thinking of - could you slice through the timber with an anglegrinder in such a direction that inserting a new splint of wood will give the structure its strength back and also cut through the shaft of the bolt in such a place that you can pop each severed half out of there? Beware of metal sparks setting dry timber on fire! Nick |
#30
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How to remove coach bolts
Nick Odell Wrote in message:
On 02/03/2019 21:32, Murmansk wrote: I'm trying to dismantle one of those outdoor swings - like a wooden sofa suspended on chains from a wooden framework with A shaped supports at either end. The bits of timber are attached with what I think are called coach bolts - a domed head with a square bit underneath. The problem is that the bolts are recessed down a hole. I can turn the nut with a socket set but because it's a all a bit rusty and seized up the head of the bolt turns as well and I can't get hold of it to stop it because the head is domed and down a hole. Any ideas how I can get hold of the head to stop it turning? Altogether, one, two, three: ANGLEGRINDER!!! Seriously - and maybe this is what Jim was thinking of - could you slice through the timber with an anglegrinder in such a direction that inserting a new splint of wood will give the structure its strength back and also cut through the shaft of the bolt in such a place that you can pop each severed half out of there? Beware of metal sparks setting dry timber on fire! Er no I was suggesting the op cuts the nut off at the other end from the recessed coach bolt head. He has access as he is trying to turn it? -- Jim K ----Android NewsGroup Reader---- http://usenet.sinaapp.com/ |
#31
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How to remove coach bolts
"Jim K.." wrote in message o.uk... Nick Odell Wrote in message: On 02/03/2019 21:32, Murmansk wrote: I'm trying to dismantle one of those outdoor swings - like a wooden sofa suspended on chains from a wooden framework with A shaped supports at either end. The bits of timber are attached with what I think are called coach bolts - a domed head with a square bit underneath. The problem is that the bolts are recessed down a hole. I can turn the nut with a socket set but because it's a all a bit rusty and seized up the head of the bolt turns as well and I can't get hold of it to stop it because the head is domed and down a hole. Any ideas how I can get hold of the head to stop it turning? Altogether, one, two, three: ANGLEGRINDER!!! Seriously - and maybe this is what Jim was thinking of - could you slice through the timber with an anglegrinder in such a direction that inserting a new splint of wood will give the structure its strength back and also cut through the shaft of the bolt in such a place that you can pop each severed half out of there? Beware of metal sparks setting dry timber on fire! Er no I was suggesting the op cuts the nut off at the other end from the recessed coach bolt head. He has access as he is trying to turn it? But it might be in a hole in the wood and he is using a socket on it. |
#32
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Lonely Psychotic Senile Ozzie Troll Alert! LOL
On Mon, 4 Mar 2019 04:48:41 +1100, cantankerous trolling senile geezer Rot
Speed blabbered, again: But it might be in a hole in the wood and he is using a socket on it. You obviously got a hole in your senile head, and someone shut put a sock in your senile mouth! -- about senile Rot Speed: "This is like having a conversation with someone with brain damage." MID: |
#33
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How to remove coach bolts
On Sun, 3 Mar 2019 00:09:12 +0000, Nick Odell
wrote: Altogether, one, two, three: ANGLEGRINDER!!! Seriously - and maybe this is what Jim was thinking of - could you slice through the timber with an anglegrinder in such a direction that inserting a new splint of wood will give the structure its strength back and also cut through the shaft of the bolt in such a place that you can pop each severed half out of there? But why? Cut a slot in the head, insert screwdriver in slot, hold head while recessed nut is turned by the socket... Beware of metal sparks setting dry timber on fire! That. And sparks hitting glass and burning in... Thomas Prufer |
#34
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How to remove coach bolts
On Sun, 03 Mar 2019 18:35:58 +0100, Thomas Prufer
wrote: On Sun, 3 Mar 2019 00:09:12 +0000, Nick Odell wrote: Altogether, one, two, three: ANGLEGRINDER!!! Seriously - and maybe this is what Jim was thinking of - could you slice through the timber with an anglegrinder in such a direction that inserting a new splint of wood will give the structure its strength back and also cut through the shaft of the bolt in such a place that you can pop each severed half out of there? But why? Cut a slot in the head, insert screwdriver in slot, hold head while recessed nut is turned by the socket... Ah, I geddit now: The head is down the hole... I'd stick a flat screwdriver down the hole, and try to wedge it between the edge of the domed head and the wall of the hole, in the hope that the nut won't need a lot of torque to come off. Thomas Prufer |
#35
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How to remove coach bolts
Ah, I geddit now: The head is down the hole...
I'd stick a flat screwdriver down the hole, and try to wedge it between the edge of the domed head and the wall of the hole, in the hope that the nut won't need a lot of torque to come off. OP here Both ends of the bolt are recessed down 3cm deep holes. I've tried the above with no luck. |
#36
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How to remove coach bolts
"Murmansk" wrote in message ... Ah, I geddit now: The head is down the hole... I'd stick a flat screwdriver down the hole, and try to wedge it between the edge of the domed head and the wall of the hole, in the hope that the nut won't need a lot of torque to come off. OP here Both ends of the bolt are recessed down 3cm deep holes. I've tried the above with no luck. That's bad design then, which admittedly is of no help. Thinking about it, the whole point of the domed head on coach bolts is that they're supposed to sit proud on the surface not in countersunk holes, If you're going to use countersunk holes you may as well use hex-heads. Your experience is also something for people to think about when contemplating using coach bolts in countersunk holes. As both ends are countersunk it would appear as suggested before that your best bet is to try and drill through the heads sufficient to separate the heads and get down through the square section as well. So you can knock them through with a punch. Obviously the separated rings of what remains of the heads won't fall out upwards so you'll have to dig them out, As they're in a recess you can fill the hole with water which will keep things a bit cooler which might help. michael adams ..... |
#37
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How to remove coach bolts
"Murmansk" wrote in message ... Ah, I geddit now: The head is down the hole... I'd stick a flat screwdriver down the hole, and try to wedge it between the edge of the domed head and the wall of the hole, in the hope that the nut won't need a lot of torque to come off. OP here Both ends of the bolt are recessed down 3cm deep holes. I've tried the above with no luck. Then drill a hole in the head and use a screw extractor in the hole to get a good grip on the head end of the bolt. |
#38
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How to remove coach bolts
On Sun, 3 Mar 2019 11:08:21 -0800 (PST), Murmansk wrote:
OP here Both ends of the bolt are recessed down 3cm deep holes. I've tried the above with no luck. Narrow cold chisel, in the hole, and hit it hard with a big hammer, in the hope of a) pressing the bit of square coach bolt into "fresh" wood, and b) digging the chisel into the head for a bit of grip? If that fails (which I think likely): make a guide, i.e. a hole-diameter wood plug with a bolt-diameter hole in the middle, and drill through the head and into the bolt. This sounds like one of those infuriating jobs where long, tedious work eventually may or may not pay off... Thomas Prufer |
#39
Posted to uk.d-i-y
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How to remove coach bolts
Murmansk wrote:
Ah, I geddit now: The head is down the hole... I'd stick a flat screwdriver down the hole, and try to wedge it between the edge of the domed head and the wall of the hole, in the hope that the nut won't need a lot of torque to come off. OP here Both ends of the bolt are recessed down 3cm deep holes. I've tried the above with no luck. Have you any means of driving the socket from an impact driver? You may have to use some ingenuity to do but if you can achieve it then the way impact driver *works may with it its rapid impacting loosen the nut while you do what you have tried before and put some pressure or leverage on the domed head. When i have done similar it is surprising what heat is generated by 30 seconds or more of impacting and that can help expand the nut and break the rust bond, dont forget the old trick of actually attempting to tighten the nut which can also break a rust bond. * And before any pedants jump in I mean in the modern sense of a powered one, not the old style you belted with a club hammer. GH |
#40
Posted to uk.d-i-y
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How to remove coach bolts
"Thomas Prufer" wrote in message ... On Sun, 3 Mar 2019 00:09:12 +0000, Nick Odell wrote: Altogether, one, two, three: ANGLEGRINDER!!! Seriously - and maybe this is what Jim was thinking of - could you slice through the timber with an anglegrinder in such a direction that inserting a new splint of wood will give the structure its strength back and also cut through the shaft of the bolt in such a place that you can pop each severed half out of there? But why? Cut a slot in the head, Not that easy to do with it down a hole. insert screwdriver in slot, hold head while recessed nut is turned by the socket... Lot easier to drill a hole in the head and insert a screw extractor. Beware of metal sparks setting dry timber on fire! That. And sparks hitting glass and burning in... |
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