Q:No cross screwdriver, how can the screwdriver screwdriver?

Some nail holes have depth, you can use the female (black vintage kind) steel wire card flat steel filing with a file to repair a little more can be a little more, if the nail in the plane, The use will also be on the.

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

He means that the tensile strength of the screw minimum 400MPa, the minimum yield strength of 320MPa (tensile strength of 80%). Please refer to the national standard GB3098.1 or ISO international standard ISO898-1 the requirements.

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:What is the effect of the screw?

Screws are also called screws, and the screws can be divided into three categories: machine screws, set screws and special purpose screws.

Q:This screw ye use, and how to use next to the cover

This requires the use of professional mechanical drilling machine, and then use the reaming machine to the plastic nail into the hole, and finally twisted into the nail on the line

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

Look at the picture that the screw is not damaged, it may be removed. First of all, be sure to use the appropriate six-way wrench, can not use a common font and cross-shaped screwdriver. Second, with the heating method to remove, from the picture point of view around the screw are metal structure, with alcohol torch heating or high-power electric iron local heating, softening the plastic, hot disassembly, should be able to remove.

Q:Why the screw thread more closely, spin into the more effort?

This is due to the spiral angle of the thread becomes smaller, the pitch of the thread, the lead becomes smaller.

Q:Please understand the friends of the self-tapping nails, screws, nuts production process, is the manufacturer's process. The more specific the more detailed the better

This is very simple, the screw wire is generally based on the size of the screw into the back, and then according to the order processing, starting - rubbing teeth - plating - packaging on the success

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,

It is recommended to go to the hardware tool shop to buy a small cross screwdriver it, the daily life is often used, with other methods may cause damage, it is not recommended.

Q:How does the screw twist?

It depends on what your screw is the type of friends, if more than 8mm, we generally use, in the above welding a rod.