removing sheared radiator bleed screw

[jobloggs49]

Hi

The bleed screw on radiator partially opened then square top sheared off when I tried to open it further. The screw is directly in the end of a round top steel radiator not in a removable plug.

Any advice on how to remove the remnants without damaging the treads in the radiator?

 

[ALCPlumbing]

Remove the whole plug that the bleed screw fits into and replace. That's not always possible though. Depends on the radiator. Can you post a picture?

 

[gigz]

Drill it out with a small bit, then use a tap and die to rethread it. Or (bit rough this but works) drill it out and put thread tape on a brass screw.