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
STARTS… CARDBOARD
Going into the club "Technical modeling", we saw a lot of bench models made of paper and cardboard by One of our members suddenly suggested — and in fact the GAK you can build and...
“VERTICALBAR”
In the construction of the great importance of the so-called mark (vertical dimensions, the count of which produce from the finished floor level of the first floor). When you craft a...
