How are screws marked and measured? / Kljuc13 

This is a shortcut to learning the nuts and bolts
For all of us who had problems because we didn't know how to explain in the store which screw we needed, because we didn't know how to measure the dimensions of the screw.
We didn't know which DIN it was.
We have no idea what quality or strength it is.
These are all problems that bother us when we need to measure or read what kind of screw it is.
In this video, we want to help everyone who has had problems with screws and cannot find a screw in stores or on the Internet.
0:00 Intro
0:56 Marking screws
1:49 Screw dimension
3:51 What is the norm?
6:31 The strength or quality of the bolt
9:52 Bolt protection
13:42 Measuring screws or screws
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