We have all done it, overtightened a bolt and blown out the threads. When a bolt starts to tighten up and then go suddenly loose, you know that the threads are toast and now you have a problem.

We’ve all had this happen at some point while tightening hardware: It feels like it’s snugging up nicely, and then it suddenly seems to tun too easily. Or maybe you were removing stubborn hardware and ...

New thread mills and insert mills from Emuge Corp. (www.emuge.com) are designed to solve problems of leaking pipe joints in the petroleum and natural gas industries associated with traditional machine ...