crossthread
Titanium
- Joined
- Aug 5, 2004
- Location
- Richmond,VA,USA
As a retired Urologist I thought I had seen every kind of nut imaginable.......just kidding. My son is a mechanical engineer at Philip Morris. They have allthread screwed into anchors in the concrete ceilings which hold various cable ways and pipes in fours layers. He was working up a work order to remove all the layers up to the third level which is the only place that had enough headroom to install new equipment. A machinist came into his office and dumped a box of these nuts on his desk and told him that they could add nuts anywhere on the allthread without taking the whole thing apart. Brilliant.