Damaged Threads - "Fixing" with a Die

Here's what happens when you try to fix damaged threads with a die instead of a rethreading set.
Oh, ‪@FunkFPV‬do your worst :D
Lang Version of the Thread Restorer Kit: amzn.to/3FIUrku
Yost Vises 465: amzn.to/3WJor6c
Gearwrench Tap and Die Set: amzn.to/3vBhPe5
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Audio Track:
Frantic - Bonnie Grace - courtesy of www.epidemicsound.com

[@The_Velocibadger]

Flattening threads with a hammer forces material into the valleys between the threads making the bolt useless, using a dye sure doesn’t fix the peaks, but it fixes the valleys and that’s all that honestly matters

[@SomeGuysGarage]

Yup, note the "fixing" in quotes, since it doesn't actually fix...I did a video the other day using a rethreading tool which straightens out the threads rather than cuts. Someone said you can just use a die, which you can, but like you said it cuts the valleys and doesn't fix the peaks.

[@schlomoshekelstein908]

@@SomeGuysGarage cut/file grooves into a bolt and then use that to straighten the threads

[@Randald]

​@SomeGuysGarage he's saying you're wrong. Especially for the type of home repair work where the bolt wouldn't just be thrown away. Plus pushing that material back will make it weaker and more prone to fail than just cutting the excess.

[@leeh9420]

Yup - the Lang thread repair it (and similar) is fantastic, and doesn't leave you with WEAK threads (which is why using die is bad)

[@SomeGuysGarage]

Exactly!

[@StrongerThanBigfoot]

What the difference

[@leeh9420]

​@@StrongerThanBigfoot A regular tap/die with remove metal, which weakens the holding power of the fastener. A thread repair kit like the Lang/Kastar kit will re-shape the thread to it's original form with little-to-no loss of metal and this little-to-no loss of strength.

[@StrongerThanBigfoot]

@@leeh9420 Thank you

[@tylerangel4073]

Dumb question how do you pick the correct die for the bolt you need to repair

[@SomeGuysGarage]

Most tap/die sets have a thread pitch gauge, that'll tell you the second number in the size (the TPI or thread pitch). The first number is the diameter, so you can simply measure that with something like a caliper, or just try until you find the one that looks about right (depending on how damaged the threads are).

[@Junior-fd8ux]

My phone has gone from listing to what I’m doing to watching because I literally just got done working on beat threads. Someone grabbed them w vice grips. I used a small triangle file and went slow and eventually taking my time. 3 bmx axles worth 50$ a pop that were giving to me thought to be trash. Iv got lots of practice from destroying threads as a kid tho lol

[@SomeGuysGarage]

They do make thread files too FYI check out the Lang rethreader set. Honestly thought straightening threads with a forming die (essentially what a rethreader is) is better though since it doesn't remove material.

[@a_pc]

Never knew that was a die

[@SomeGuysGarage]

Yup, that's what a die looks like

[@Steey_jessie]

Duh 😂😂😂

[@SomeGuysGarage]

lol duhhhhh