This article was updated May 25, 2023. It was originally published Nov. 17, 2009. To put hard, durable threaded holes in plastics, engineers often specify threaded metal inserts that will securely ...

Engineers at General Dynamics Land Systems, Sterling Heights, Mich., faced a challenge when designing the Expeditionary Fighting Vehicle for the U. S. Marine Corps. The amphibious combat craft needed ...

There has been tremendous progress made in recent years on ways to make roughing operations more efficient. But what about finishing? Long cycle times may be necessary to generate high-quality surface ...

Stripped or damaged threads on an M14 x 1.25 bolt hole? Don’t worry – this Helicoil-style thread repair kit from neilsen has you covered. It comes with 15 pieces (inserts and tools) to permanently fix ...

Pemhex is a self-clinching prevailing torque lock-nut from Penn Engineering, with the integrated nylon insert there to resist screw loosening in service due to vibration and thermal cycling. “The ...