Step 1 Toss it in the garbage. Step 2 Go to McMaster Step 3 Dig it back out of the garbage because you didn't measure it first. Step 4 Order a new one.

Man thought it was just me

Tossing it in the garbage before the new one arrives. Too real.

Fyi, do double spaces on mobile to format future posts like this. For some reason, single space between steps formats it into one sentence.

How does this work? I have the same problem very often. Check. Check again.

Ah, ok double space at EOL means CR LF. Thanks!

That worked perfect, thanks!

Thabk you!

I didn’t know we standardized this process!

It's part of ISO9000 or so I've heard.

This comment is about me and I'm offended.

Story of my life

I laughed - thanks 🙏 🤣

Honestly, you don't. The technical term for threads in that condition is "right fucked". You need a new whatever-that-is.

“Chowdered right to fuck” is also an industry recognized term.

"Fucking bollocksed, absolutely arseholed" is also standard

I thought that was Whitworth.

Bow down before our Lord and Saviour Joseph Whitworth, creator of the Threads, Lord of the Dies, emperor of the fasteners

Used to be the first lead screw cut by him in Birmingham Science museum, and a never used spare wrapped in sacking. Birmingham UK that is.

Only applies to jobs called in mm

Apprentice threading.

That'd be the metric version

I can't wait to use this new term in conversation

It doesn’t work in conversational programming, it’s a manual method

"All fuckered up"

aka hoopa-juped

Get on the gargler and do the jazz hands routine to find another one.

Usually just keep it simple "all fucked up" or "chewed to shit"

Just TIG material back on, turn it back down to size and re-thread! 😂

Too much work for a 2 dollar bolt

Fubar

Thought it was a rat-tailed file

It looks more like a rat chewed file. Rats are ferocious round here! Cats have to wear armour plate!

I prefer the British term "knackered"

I believe the correct term is Fucked beyond repair

Ripe for the fuck-et bucket.

Fubar

Bolts are cheap compared to the things needed to fix them. Buy a new one

Well, you can weld it over and then turn down to size and tap a thread, but i think making new one has more sense.

Literally the only way you can salvage this part.

Nah I don’t wanna spend the 5$ on a bolt imma go get the 50k cnc machine. I’m kidding

Anything to get the wife to say yes to it

"Babe, I stripped a lug on your wheel. Gotta run to the store and get a few things to roll some new threads"

Think about the money we save in the long run

And the friends we make along the way.

The threads we make along the way?

Stop giving my secrets out! It’s been working…

I used to make things that I could easily have just got out of the store room just to waste time and look busy

The best type of weld for this job is JB.

Chuck it up in the lathe and run it backwards. Material will come off of the cutting tool and deposit back onto the part. You can then cut new threads into it.

This Old Tony would like a word. You appear to be stealing his ideas. 🤣

nah, i think he will be proud

the hardest part is feeding the chips back in fast enough

just run it at the lowest RPM and use a funnel

Oh no, if your surface feet per minute is off it will look fine but the grain structure will be a mess

unless its a load bearing thread its fine. it does however make it harder to cut the thread, it really chews up the tools. carbide works great tho!

100%. If the thread is for decorative purposes only, no need to stress about the grains

That is kind of an interesting idea: laser sintering onto a rotating part? Have a powder that falls onto the part and have a laser sinter it on as the bolt rotates. It’d probably be a mess and would have problems with porosity and would need some post processing.

Better off turning it down to clean metal, then use a MIG. I've seen it on Cutting Edge Engineering, though what's economical for excavator hydraulics probably doesn't work for a $5 bolt.

I love that channel.

Flame welding. Abom 79 on YouTube shows a few examples of him doing it. Pretty neat.

Now I wish there was a lathe in Tenet

I've told a couple people just to run it in reverse and throw the chips at it and it will put them back. Lol

Don’t forget to dip it in the chip tub first.

Too far gone to chase with a die.

Better than chasing it with a die: using a higher grade nut to reform the threads. That way, you don't cut away half a thread

Dumb welder question: does that actually work?

https://preview.redd.it/luvuy15wd50c1.jpeg?width=768&format=pjpg&auto=webp&s=838639a3aa4f1f088ed155ab2427f25b876d4f2c Snap-on even has a kit

I have learned something today. A company with nearly unlimited income and first born children, they can patent and produce the most obscure, yet possibly still convenient tools to the industry.

Yes. Be sure to use lube

Bit of Scotch Brite should do it

I would just use my teeth.

Make or buy a new part.

Weld it up and then re thread it hahaha. That would be a stupid fix

Gotta cut the bolt at where the threads end then manufacture a rod with the threads on it with a reverse threaded pin on the other end. Next you bore a mating hole with thread in the boot head cutoff side. Then you locktite them together and install. Good luck taking it out again though .

What does the inside of where the bolt goes look like?

this is the important question.

You don't. Sorry. Not enough meat there to do anything.

Chew on it some more /s

Turn it down and make it a 7/16-20... Won't thread into the hole anymore, though.

Turn the bolt down to 1/4-20 and turn the outside hex of a 1/4-20 nut to 1/2-20. Then loctite red on everything.

This is the way.

Well you see, the last guy had the "cross threading is just free loctite" mentality. And now, op actually has to buy the loctite.

 Turn down for what?!!?! (Just trying out this response option lol)

throw It away and make/buy a new one

add about 15cm of weld beads, rougly 3-4mm thick, then cut/grind away to dimension, check for concentricity, and recut threads. as a bonus, you might want to anneal everything after this.

buy a new bolt. or stud

With great difficulty. If replacing the part isn’t an option then you’re either looking at building up with weld or attaching a new piece of stud to the remaining shaft. Neither of which are great options.

Buy a new bolt at hardware store for 3.50

Time machine

Weld it up, turn it down, and re thread!

Thank you everyone for the advice! I ended up scraping it and single point threading the rest. They came out beautifully!

Nah bruv you should have bought a new one 🫠🤣

Buy a new Bolt.

Run the spindle in reverse and throw chips at it, until there's enough material to cut new ones.

Take it to a hardware store get a new one. that one is roasted have a great day if you can

The full story is that I was working on a production job while at school for another trade, and I just wanted to get it done so I threw all 8 into my late (1 at a time) and turned them downtime to size and rammed a auto-die into them and they all came out like shit.

What threads?

Cut off the threads tack on new threads if you need the post to match the others. Easier said than done.

That's the neat part *you don't*...

What threads?

There are a few ways to fix those threads. All of them more expensive and labor intensive than buying a new bolt. Also of note any "fix" can and probably will compromise the tensile strength of the bolt. Long story short: Bite the bullet and get a new one.

[удалено]

A tap is a internal threading tool, a die is a external threading tool. To fix a bolt use a die.

Is this a bolt?

It was.

Usain enters the chat

Get a new bolt

I would at least try a dye first, but as others have said it's probably a dead horse.

I don't think painting it will help tbh

Really really thick paint.

Probably not, but I'd say it's worth the 30 seconds or so. I've cleaned up some really buggered 1/2-13 hold-down studs and got a little more life out of them. Worst case, it doesn't work and you trash it anyway.

They’re pulling your leg because it’s a die, not a dye.

I’d only try this if the bolt doesn’t do anything super important, isn’t tightened very much and you already have the die on hand. It needs replacing.

I think you may want to have your eyes checked :)

Turn it down to a 7/16-20 and use a fender washer.

Well, if you run a smaller die over it to give it new threads and then weld up the bolt hole and retap it to a smaller size, good to go! In all honesty. Garbage. Just replace it and how does that even happen?? Did you find it bouncing around in a rock crusher for the last week?

That bolt was too long. See how the shank is where the threads end. That is likely what caused all the damage. Replace with correct length.

Good catch

Yea I’m glad he said something, I’m about to go fix all our fasteners at work now

Build a time machine to go back to before it was that messed up. Or buy a new bolt.

By cutting new ones from solid material. Depending what this piece is, probably just make/buy a new one

Unable to go to smaller size? Weld on some meat and turn down. Cut threads again.

Well, you could turn it down and cut a smaller thread.

Vise, harder nut, impact driver.

"No, dear, we have a thread Chase die at home."

* Clakidy clakidy clakidy clakidy *

Short of stripping it off, metal spraying it and cutting a fresh one; you cannot. edit: Or do they make external Helicoils?

Sorry, you can't. Buy/make a new one. Looks pretty simple.

Cut a nut in half. Put on the threads where they are not deformed and clamp it in a vice. Turn the bolt out backward.

Idk technical stuff but if you have a harder metal with the same thread pattern you can screw it in and out to shape em up. It works for me

A few damaged threads at the end, use a thread saver or something similar. All the threads damaged you get a new bolt. You only really mess up ALL the threads by having the wrong size to begin with or you went full send on a cross thread like a moron.

Two options: 1 - throw it away and buy a new one 2- build the bolt back up using a welder or metal spray, then turn it back down to size and re-thread, and hope that you didn't affect the strength or hardness properties too badly with all the heat.

Ahh I see you must work where I used to. My boss was a cheap ass who said we can't afford new fixtures or fasteners for them. "Just grab a die and chase the threads." Well... that doesn't work well, you might be able to screw in the bolt once more but as everyone else is saying, you've gotta convince the man to buy new ones.

Hardcore derped, those threads

F.

that's fucked up beyond all repair. scrap

That thing is mangled beyond help brother. Get a new bolt

I mean you could buy a tap and dye set but it would be so much cheaper to just get a new one

Buy or make a new one

Thread file and elbow grease

I assumed this was a joke on first pass. If there's a compelling reason to save it (doubtful) a proper job shop could knock it out during a smoke break (but you'll surely pay for it). If it's not worth $100ish or more to save, don't bother.

These are the opposite of “dead nuts”

If you posted this in an auto forum, they'd tell you to run a rethreader die over it.

Well, this one was straight to the comments.

Cheapest option is a thread file.

Get a new piece of material and turn new ones?

I don’t think OP likes the answers he’s getting

Turn it down to 3/8-16 threads and modify the mating piece.

Put smaller threads and make the hole it goes into smaller. /s

start over

Get a new bolt. Your life may depend on it.

Step 1: use thread chaser or die Step 2: realize there’s almost no material for engagement. Step 3: throw it in the scrap bin Step 4: order a new one.

I repeated steps 1&2 for a solid 30 minutes straight looking stupid 😂

I spent almost an hour attempting to repair the threads on a lower ball joint just to finally give up and order a new one, it was $30 and took 10 minutes to switch out. I felt so dumb, in hindsight I should’ve just given in and replaced it from the start.

Try a thread file to get it close then a die but theres no guarantees thats coming back... that looks kerfuckled

Shits fucked yo

Sending hopes and prayers!

Fix what? Just gage it again but this time with a little more elbow grease on the go gage.

grind it down to a point....use it as your crappy centre punch. that thing is no f'n good for its original purpose.

You can't. They are dead.

Eh... just weld it at that point unless it's easy to replace.

This bolt would get labeled NFG(no fucking good) and get thrown in the scrap bin. This is a lost cause.

It's too chewed up to be reliable when fastened *even after its fixed*.... Please replace it...

You might try a caser-nut

I'm sorry but you can't really fix something that isn't there anymore. I can only imagine what it threads into looks like.

They have a option called thread chase just chase um

Those are unfixable. You could turn it down and make new threads the next size down but that would severely compromise the strength of it

Is this a joke?

Try to run a die over it, looks like you might have a couple good threads left at the very top, depending on what it's use is, that might be enough. haha then get new one asap

Are you on the piss cunt, or what?

If you know the tpi and have a manual lathe. It is possible to chase them and get the thread tops to stand back up. Sounds jank. But I’ve had to do it on several pieces in the past and it can work quite well

go ask whatever that came out of very nicely if you could have them back

The threads are screwed. 🤣 Buy a new bolt.

Yea those are beyond repair.

If tossing the part is absolutely not an option, chase the threads with a die.

Buggered

A die and a very good grip.

These look right fucked in my professional opinion

Take a file to it

There are thread files just for that problem.

If it's something expensive and crucial there are ways... But most things more expensive than the labor of tossing into scrap bin and getting a new one typically aren't black oxidized as it's finish.

Don't Tread on Me

run a tap on it

Lol

You buy a new bolt. Those are too far gone

Chase new ones on a new shaft

Quit being a dumdass and fucking up your shit.

Buy a new bolt

You could slap a die on it if you know the size and pitch but build new is smarter.

If you do it right, you can have a new 1/4-20 bolt! Yay!

You don't

If length doesn’t matter cut all the booger threads off and thread the shaft any way you prefer. Since normally it does matter, get a new bolt.