Usually designers avoid threaded joints if at the conventional “nut” less than two to three threads. Method shown in figure, allows you to make a threaded connection more reliable. However, to make a hood, will have to make a simple punch and die.
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Offer to improve a closure for closing window frames: it a metal plate with a slot for fixing the "tongue" needs to be set obliquely, as shown in the figure. Now, if zakryvanii frame in...
