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
HANGER FOR AN HOUR
Sheet aluminum or stainless steel and a hacksaw is all that is necessary for making a simple hanger that will fit into the bathroom interior. Yuri PISKUN, Donetsk
PROPELLER -THE PROPELLER UNIVERSAL
The driving force of the engine during the flight of model airplanes, aerovision or aeromobile is the thrust of the propeller. The quality of the workmanship and clarity of the selection...
