Q:I am a trainee apprentice, recently encountered a problem, that is, some screws are screwdriver screwdriver or hexagon turned no thread. Can not buckle, only in the inside idle. What is the general use of this situation to open it? Thank you, more urgent.

Next time do not move do not stand with stupid. Dripping hair dynamic ah. As for how to do bad bad. Others have already said

Q:How is the screw nailed to the wall

Use a slightly larger nail than the screw into the wall. After unplugging, use plastic expansion bolts and then screw the screws. The disadvantage is that the strength of the cement is different, and some pull the nails will not care when the wall will tear off the hole.

Q:What is the meaning of the screw and the 4 and 8?

Strength grade 4.8, nominal tensile strength of 400MPA products, yield strength 320 (nominal 80%). For details, please refer to GB3098.1 or ISO898-1. There are all indicators

Q:The idiom of the screw

Meaning modesty, that their own small insignificant, insignificant but indispensable.

Q:What does the screw m4x6 mean?

So, with the bolt material does not matter, no matter what kind of material you use, as long as the performance can be satisfied

Q:M4.8 * 25 What does it mean in screw size?

You should ask the specifications of the method should be very rare 4.8 should be more from the tapping, should not use M said, M generally said that the machine thread

Q:What is the invention of the screw?

Hello hello as early as 2000 years ago appeared, but it will be used for fixed objects to be delayed until about 500 years ago. The first person who describes the spiral is the famous ancient Greek scientist Archimedes, which uses a wooden bucket to make a spiral object used to extract water from one plane to another plane for irrigation. By the middle of the Middle Ages, craftsmen used wood nails or metal nails to connect the wood structure of the building. This should be the real predecessor of the screw. In the 16th century, people began to produce spiral nails. And to the 18th world, people began a large-scale production of fastening objects with a screw nail. The afternoon is helpful to you

Q:Very urgent, please help a lot. I do not have any advanced tools, only the screwdriver or something

Use a 502 glue to stick the screwdriver above it and then twist it down

Q:A tightened screwdriver has been damaged, that is, the cross into a round mouth, and now I need to get it out for a new one, is there any way to take it out?

If the screw nail head on the outside, you can use the hacksaw saw a word again, and then use a relatively large one screwdriver out, if it is Shen head head, only slowly with a file to do, and then screwdriver.

Q:I would like to look at my mp4 apart, the above screws are small, is cross-type, our family is not so small screwdriver, what can be used to screw the screw Oh, a little practical method Kazakhstan,

Buy a set of gadgets, a few dollars. Or to repair the master of the watch that borrow (generally do not borrow).