Q:The Symbolic Meaning of Screw

The symbolic meaning of the screw is generally refers to Lei Feng's "screw spirit", is consciously put the individual into the cause of the party and the people, the individual obey the whole, obey the organization, loyal to duty, work conscientiously, do a line of love, and serve the people wholeheartedly the spirit of.

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.

Pistol drill drill from the back of the screw, do not drill too far

Q:What is the role of flat washers? There is a friend who can introduce

Flat washer1 generally used for multiple parts, to increase the bearing surface, covering the larger hole, to prevent damage to the surface of the parts, large washers for wood parts.

Q:Inside the hexagonal screws, rather not down, it may be too much screw on the screw too tight has been bad 3 screwdriver screw is too small also one-half of rice grain please help think about ways

First engage in a rust or diesel under the bubble. Then T-type wrench twist. (Own do)

Q:Also known as screw nails, I want to nail on the board, but there is no way to nail into the hard, how nail?

You say is a self-attack nail with a screwdriver twisted into the picture is not self-tapping is not used on the board, which is used on the expansion tube, to change the nail or wood screws, or direct use Nail nail

Q:what parts do Fasteners include

A type of fastener that has no head and only the ends that are threaded at both ends. When connected, it must be screwed into the part with internal screw hole, the other end through the through hole with the parts, and then screw the nut, even if the two parts fastened into a whole. This type of connection is called a stud connection and is a detachable connection. Mainly used for connecting parts of a larger thickness, requiring a compact structure, or because of frequent demolition, should not be used bolted connection occasions.

Q:What is the invention of the screw?

Certainly is the invention of foreigners, specifically who do not know.

Q:How to use washer, gasket, o-ring "

Different purposes, the installation position and the corresponding flange are different, if this is how to choose, advantages and disadvantages, too much information

Q:Screws, bolts, screws, what is the difference between the three ah?

The screw is an incorrect call, non-professionals on the threaded parts collectively, in the industry without this call. In the fastener industry, in fact, screws and bolts are not a strict sense of the distinction. However, there are two ways in the industry to distinguish between screws and bolts: 1. According to the structure, the so-called twist structure, refers to the screw / bolt used to put the wrench above the place, that is, In some systems inside, the external pull the structure of the external screw rod-shaped parts are all called the bolt, on the contrary, will pull the structure called screw. This is a more obvious example is the Chinese national standard fasteners, for example, GB5782, GB5783 (a half thread, a full thread), the hexagonal bolts, The Because they are hexagonal structure, so, in the standard name, all called: bolts. 2, according to whether the product has a non-threaded bar features to distinguish. This is also a relatively wide use of a classification method, are generally so distinguish between bolts and screws. That is, if the part of the product other than the head is threaded, this part is called a screw. On the contrary, if, in addition to the thread but also has a light rod and other characteristics, called the bolt

Q:What tools are used to remove the screws, the two lines are grooves, the middle of a paragraph is convex

There is a multi-component tool that specializes in handling such screws.