milwaukee chuck

[toddjg]

I'm replacing the chuck on my 3/8 drill which is keyless with a keyed chuck from jacobs. the screw that holds the chuck to the drill is giving me a tough time its allen head lh thread. when i do get it out somhow should i replace with a flat screw or other type? where could i get that type of screw anyone know what thread this screw is?

 

[Red Green]

I think they put Loctite on those screws from the factory you might use a soldering iron to heat the screw to help you get it out.