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
GLASS PLIERS
If a sheet of glass cut by a few millimeters, then break off the edge you better not side groove of the glass cutter, and pliers. In this strip of glass is often separated from the sheet...
RIDING ON THE VACUUM CLEANER…
Not so easy to store a bulky vacuum cleaner in a small kvartire. Meanwhile, it is quite possible to "hide" so that it did not occupy a special place. For example, it is very convenient...