Hi, Ron, While I agree it's overtorquing, over time, I've had a number of the undercut-shoulder agraffes break, too. That may be because I'm so often seeing a fairly wide range of years of production, and I do agree that most of the broken ones are from the earlier period. I'm just not sure that it's possible to make a clean-cut on when it might no longer have been a problem. One thing I am seeing again in more recent production is uneven agraffe height. By that I mean noticeable/measurable differences in height between agraffes that would outside any kind of "normal" "curve" or line that might be expected. Kind regards. Horace At 10:23 AM 1/23/2012, you wrote: >On 1/23/2012 12:19 PM, Ed Foote wrote: >>I don't believe all agraffe fractures are due to lack of thread >>clearance, I have seen too many of the modern undercut design break. I >>think it is mainly over-torque at the factory, trying to get them lined >>up. Even with a "zone" offered by the more crushable lip, it seem they >>still miss it by enough to occasionally over stress the studs. >>Regards, > >Fine. I haven't seen any broken agraffes at all with undercut >shoulders. Every one I've run across has been as I described. In >either case, it's over torquing. >Ron N
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