Humour - page 237
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The first of the second line is also used, and is called a rivet :)
Like the 1st, 3rd, 5th from the second line - that's a given, there's nowhere without those bolts.
In our (domestic) reality, almost all bolts are used).
All these bolts are used at VAZ plants, and recently VAZ shared its experience with RosCosmos as well...
In the mid-80s, our television industry mastered the production of integrated-semiconductor TVs of the 3USTCT type.
The TV set was not bad for those days, but first series had unreliable scanning - often power transistor protruded due to overvoltage.
It was very difficult to obtain or buy the transistor, it cost fifty dollars at the market (immense money for a worker at that time), especially on the eve of the New Year.
A turner acquaintance came to our laboratory from the workshop with a request to repair a TV set and we showed him which transistor he needed.
He twisted it in his hands and went to search - the New Year's holidays without a TV set is not a holiday.
He came the next day radiant and proudly showed us - change it!
It was brand new, not soldered!
I turned out an exact copy on a lathe!
At least 3 varieties of bolts shown are used in technology without any jokes.
The second from the first line, the first and the fifth from the third.
Personally I was immensely surprised to learn that seemingly ordinary bolts of cylinder head on toyota are elastic! (Fifth of a third) And, if you're not lucky, used ones might not fit.
Exactly.
And it's not just in Toyotas.
Tapered threaded holes are also often used in cars - a simple example: a self-compacting drain plug in a crankcase or gearbox (typical of vaz cars).
The "floating" bolts with the threads above the threads could be seen by all those who had anything to do with hardware (especially military) - on replacement (reserve) units and not only.
There are often various sealing elastic washers or retaining rings in this slot to keep the bolts in place during mounting/dismounting...
and bolts for non-existent holes are used all the time in modelling
The wedge bolt can also cause congenital dissonance without context