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
“HYDRA” – AEROHOD
A few years ago we managed to build a very successful vehicle — herohitonakomode. Testing of this device proved to be very successful and we wish our experience could use a lot of...
A SHEATH FOR CHISEL
Of course, not the same as the dagger. Nevertheless, its edge— the most vulnerable part of the tool will be reliably protected. This will require a piece of rubber hose or plastic tube...