Cast in many industrial products have long been used mortgages (anchor) bolts with special heads, such that not only pull, but rotate can’t.
With the advent of high strength composite self-hardening compositions that bolt you can “lay” in the body of the finished product (plastic or metal) and making it pre-nest, and then simonaityte.
Recommend to read
GARDEN ON THE WINDOWSILL
Those who are engaged in home hydroponics and grows herbs on the windowsill, suggest of plastic containers of different kinds of domestic dry and liquid substances to make a convenient...
Siberian All-Rounder
I invite the magazine’s readers to get acquainted with an original design of a universal self-propelled vehicle built by my brother Alexander. As he claims (jokingly, of course), the idea...