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
RACING “WING”
Looking through the model magazines for the last couple of years, you've probably noticed a sharp change in the appearance cord racing model aircraft. They have disappeared, it would...
NAILED SKIRTING
After nastilki a floor you have to beat a plinth, mount which in such remote bridges, such as, for example, a radiator always causes trouble. Rescue a simple device consisting of a metal...