I had the stock retaining bolt snap off on. My 127, I have never drilled any thing as hard as that bolt.
Lee..
No gunsmith as you see but patched two of these this week.
Stock lug threads stripped.
Drilled and tapped M10
M10 stud to make a socket
M8 x 1 socket thread locked and punched to secure 'cos don't have LH M10 tap
Damaged end face from sharp spring ends
I had the stock retaining bolt snap off on. My 127, I have never drilled any thing as hard as that bolt.
Lee..
Ha, ha, Les. This one was sheared in the lug too. As you say took a bit of patience but OK now.
This looks like a very useful post which I hope I never need to use!
10mm thread has a min thread dia of 8.16 typically - you were very lucky to get away with this.
Although pleased I'm among the luckiest on the planet I did the first one M12
Then thought try M10 'cos can always go up!
Fascinating ... thank you. Would / could one of those thread repair thingies have done the job? Helicoil or relative?
Cheers, Phil
We used to use wurth timserts in the engine place I worked .you could fit then inside each other too if you wanted to use the correct size bolts.
say you drilled the hole too big ,you could put one in the size you drilled then the smaller one inside that if you get my drift.
We used that a few times when some one had drilled a broken bolt out and went off entre. e set it up in the drill press and drilled a bigger hole to fix the mis drilled original hole then put an insert in then the correct size insert inside that to take it back to the right size thread . mostly on manifold threads .
Like this pic but imagine the bottom bit is another Timesert insert and the insert is going inside it.