Threaded insert removal

rs6mra · 31 Jan 2021

Hi,

In the photo is a threaded insert in a metal tube/pipe. Any suggestions as to how I can go about removing this. I need to get to a threaded bit that's is within

marcros · 31 Jan 2021

n

rs6mra said:
Hi,

In the photo is a threaded insert in a metal tube/pipe. Any suggestions as to how I can go about removing this. I need to get to a threaded bit that's is within

no pic!

Jelly · 31 Jan 2021

Screw a length of threaded rod into it, clamp in a vice and apply force outward.

If you had a slide-hammer with a threaded attachment points that would be ideal, but capturing some wire rope round the rod between two nuts, and attaching the other end to a hammer, then swinging it so the rope suddenly goes taught is a sketchy, improvised way to accomplish the same.

Even less ideal ways include clamping a cheap vice-grip to the rod and braying on the vice grip with a big copper hammer.

TheUnicorn · 31 Jan 2021

this recent thread might help Help me out of this situation! Broken insert

novocaine · 31 Jan 2021

Its called a star nut.
2 options.
1. Punch it all the way through.
2. Punch the wings about to deform them then use a threaded puller to pull it out. It will be hard going.

These are used on bikes with a threadless headset, they aren't designed to be pulled out easily.

Terrytpot · 31 Jan 2021

Raid your tool kit and find the socket (there's usually one if you have a broad range of them) that has an internal bore that's greater than the internal bore of the pipe but just under the external diameter of the pipe...hold it on the end of the pipe and use a bolt with a thread (that matches the thread of the insert) and a washer that wont pull through the center of the socket and get screwing it in to the insert with the socket trapped between the pipe and the washer. Ratchet away until the bolt tightens on the washer and socket and keep going..if you're lucky, you'll be able to wind/pull the insert into the cavity inside the socket.