removing threadlock

[Sesame]

If you only drill partly into it then use a small selftapper should twist it out the other side.

I thought threadlock breaks down at only about 90-100 deg.

[Guest]

I thought threadlock breaks down at only about 90-100 deg.

I believe there are a variety of different grades.

[Mart61]

According to Product data Sheet for Loctite 243, which can be found here, it says:

For Disassembly
1. Remove with standard hand tools.
2. In rare instances where hand tools do not work because of excessive engagement length, apply localized heat to nut or bolt to approximately 250 °C. Disassemble while hot.

[EtheAv8r]

If I have to use heat to remove a screw (more likely a bearing that has used a bearing-fix/strong treadlock) then I use a soldering iron - a flame device would damage the surrounding area.

I suspect acetone will be good for removing old threadlock, cleaning up screws etc. I plan to try this.

[Gareth-71]

250degC ?????

If you heat most aluminiums up to more than 130degC then you change the tempering and it will become brittle.

Soldering iron on the screw, so that the aluminium is only heated by conduction. Be very careful about heating alumium......

[wil1972]

Cheers for the advice :- looks like drilling it part way out and then getting some heat into whats left of the screw is required.

Time to get that new drill chuck for the dremmel :- hopefully the high rpm will generate enough heat to assist with the removal If not I will try to screw a very small self tapper into it and then heat that up.

Thanks,

Brian