DIN913 Hexagon Socket Set Screws with Flat Point

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Product Description

Product Name

DIN913  Hexagon Socket Set Screws with Flat Point

Material

Carbon Steel, Stainless Steel 201/ 304/ 316  or others.

Size

M3--M8

Standard Model

DIN ANSI JIS ASTM

Min Order

1000piece/ pieces


Packaging & Shipping

Packing

Inner Box + Carton Box + Pallet or Under Your Requirement

Supply capacity

10000000 piece/ pieces per month

Delivery time

5~20  days after deposit

Export market

Asia, America, Europe, Africa, markets.



Our Services

1. Reliable Supplier

2. High Quality

3. Standard Producing Technology

4. Competitive Factory Price

5. Fast Delivery


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Q:What does the screw mean?
crews for the daily life of indispensable industrial necessities: such as cameras, glasses, watches, electronics and other small screws used; television, electrical products, musical instruments, furniture and other general screws; as works, construction, bridges are large Screws, nuts; transport equipment, aircraft, trams, cars, etc. are the size of the screw and use. Screws have an important task in industry, and as long as there is industry on earth, the function of screws is always important. Screw is thousands of years of people in the production of common inventions, according to the application field, it is the first major inventions of mankind.
Q:How do I install the screws correctly?
Expansion screw installation method to expand the screw on the ground or wall holes in the hole, with a wrench to tighten the nuts on the expansion bolts, bolts to go out, while the outside of the metal sleeve is not moving, so the bolt under the bulk of the metal Set up to keep it full of holes, this time, the expansion of the bolt on the expansion of the expansion screw is to make the duct support, hanging, bracket fixed to the wall, the floor, the column used in a special thread connection Pieces. Consists of countersunk head bolts, expansion tubes, flat washers, spring mats and hex nuts. When used, you must first use the impact of electric drill (hammer) in the fixed body on the corresponding size of the hole, then the bolt, expansion tube into the hole, tighten the nut to bolts, expansion tube, the installation and expansion between the fixed body Tight into one. Expansion of the expansion of the principle of expansion of screws is to use the pull out of the slope to promote the expansion of friction caused by clamping force, to achieve a fixed effect. Screw head is a thread, a vertebral. Outside the package of a metal, metal cylinder half of a number of incision, put them together thrown into the hole in the wall, and then lock the nut, Luo mother pull out the screw, the vertebral pull into the metal cylinder, metal cylinder was Open up, so tightly fixed on the wall, generally used for fence, rain Peng, air conditioning and other cement, brick and other materials on the fastening. But its fixation is not very reliable, if the load has a greater vibration, may be loose, it is not recommended for the installation of ceiling fans and so on.
Q:How to remove when the screw is not threaded
You can use a chisel in the screw cap to open a word mouth, and then use the screwdriver can be screwed down.
Q:Is it hard to heat the fasteners?
Fasteners are a kind of standard parts, and their requirements are often higher than other standard parts, but heat treatment is better
Q:What way to screw a small screw
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:Who knows who invented the screw?
Greek mathematician Archimedes invented the thread, but until the 15th century only appeared the first screw, do not know who is its inventor. 1550 years with wood screws, until 1774 only invented a screwdriver. In 1936, Henry M. Philips applied for a patent for the screws of the crosshead head
Q:Is the screw a bevel?
Belong to, the slope is equal to the thread pitch than the upper circumference of the screw
Q:Which is better than the spring washer and the inner tooth?
If you ask this question if it is to lock up, then want to effect a little better, it is recommended to use double-sided tooth lock washer, I can give you the price of understanding, Baidu my user name!
Q:How does the screw rust die?
Drop a few drops of oil or gently knock around a few times, to the rusty screw drops (to bubble better) gasoline or kerosene, washing the use of oxalic acid also
Q:what parts do Fasteners include
nut: with a threaded hole, the shape was generally flat hexagonal cylindrical, there are flat square or flat cylindrical

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