Broken screw

[TomG]

I was tightening the screw that holds the needle in the bar and the head broke off. Inswear I wasn't cranking down on it. 

But the screw is now recessed in the hole.

I am afraid that the screw is too small for standard extractors.

Suggestions?

[AndyM]

Left hand drill bit turned very slowly. If the screw that broke wasnt cross threaded all you have to do is get it to budge a sharp left hand drill bit might bite it enough for it to spin out. Auto parts stores sell them. Lube it first and you could heat it with a hair dryer or heat gun it may help. 

[TomG]

Thanks. I'll check into that. Never heard of a left hand drill bit

 

 

[CowboyBob]

If the needle is out of the hole it will take the pressure off the screw & I've turned them out many times w/a needle.You never get a drill in there to do any good,if you did you'd ruin the threads since it's so small.

Edited October 12, 2019 by CowboyBob

[Gunnarsson]

Pictures? Every broken screw is a unique case, making different methods most suitable to solve the problem.

[TomG]

On 10/12/2019 at 6:58 AM, CowboyBob said:

If the needle is out of the hole it will take the pressure off the screw & I've turned them out many times w/a needle.You never get a drill in there to do any good,if you did you'd ruin the threads since it's so small.

Not sure if I can pull the needle out as it is secure, but I'll try it when I get to the shop tomorrow.
Do you know what size screw it takes?

 

[CowboyBob]

I've carefully used vice-grips & don't over tighten or you'll break it,but just alittle twist as you pull straight down usually works for me.Different machines take different screws,what do you have?

 

[TomG]

2 hours ago, CowboyBob said:

I've carefully used vice-grips & don't over tighten or you'll break it,but just alittle twist as you pull straight down usually works for me.Different machines take different screws,what do you have?

 

Consew 227-R2

 

[CowboyBob]

That is a 9/64"x36 tpi.

[Wizcrafts]

2 hours ago, CowboyBob said:

That is a 9/64"x36 tpi.

I could use a couple of those!