Warning

 

Close
Confirm Action

Are you sure you wish to do this?

Cancel Confirm
AR15.COM
AR Sponsor
3/19/2009 2:07:23 PM EDT
Hi, I was tightening a brand new screw down on new gas key and new Bolt carrier and it snapped. I didn't think I was over doing it by any means. was doing it by hand with a small allen wrench. Anyway it snapped. Any way do get this out? This really sucks. Please help.





3/19/2009 2:22:06 PM EDT
[#1]
Drill and tap it out. You might find that by just using a reverse cut drill bit, it will unscrew itself out. There is literally NOTHING holding it in the carrier now with the head broke off so it will come out VERY easily. You might get real lucky and find a pick might be enough to snag a rough spot and get it moving.
3/19/2009 2:25:38 PM EDT
[#2]
Quoted:
Drill and tap it out. You might find that by just using a reverse cut drill bit, it will unscrew itself out.


Thanks. I figured that was the way to go but didn't know if they made taps that small as I've never had to remove a broken screw.  I'll swing by Lowe's and see what I can find.

Edit: On the small chance (or big chance) I fubar this up and damage the threads, what size tap would I need to rethread the hole?
3/19/2009 2:32:04 PM EDT
[#3]
I did that myself using the 5 finger torque wrench a few months ago.

It can be fixed, I did it & you can too!

I went to Sears hardware & found a broken screw removal kit.
Item# 00952157000 Model# 720SR

http://www.sears.com/shc/s/p_10153_12605_00952157000P?vName=Tools&keyword=screw+extractor


Each bit has on 1 side of it a reverse cutting drill bit & the other side is a easy out

I 1st used a automatic punch to center the drill strarting point.

Item# 00947094000 Model# 30280

http://www.sears.com/shc/s/p_10153_12605_00947094000P?keyword=automatic+punch

I used the smallest bit ,set the drill in reverse & drilled slow. I didn't even have to use the extractor side because as the drill started to bite into the screw it backed out.

I now use the torque wrench for everything!

Good luck!
3/19/2009 2:45:27 PM EDT
[#4]
Quoted:
Quoted:
Drill and tap it out. You might find that by just using a reverse cut drill bit, it will unscrew itself out.


Thanks. I figured that was the way to go but didn't know if they made taps that small as I've never had to remove a broken screw.  I'll swing by Lowe's and see what I can find.

Edit: On the small chance (or big chance) I fubar this up and damage the threads, what size tap would I need to rethread the hole?


You won't screw it up. There is absolutely no tension on those bolt threads and it will come out very easily.

3/19/2009 5:25:48 PM EDT
[#5]
I got it out, thanks fellas. I started drilling a pilot hole and noticed it turned it very easily. I just keep drilling and the broken screw came out the bottom. Threads still in tact and I'm good to go. Thanks again.
3/20/2009 2:07:26 AM EDT
[#6]
Good job! I love this place for this kind of information!

to all in this thread!
3/20/2009 8:06:55 AM EDT
[#7]
Torque for the the bolt is 37 in lbs,
Then read this,
http://www.ar15.com/content/page.html?id=122
AR Sponsor