DIN931 Hexagon Head Bolts

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Product Description

Product Name	DIN931 Hexagon Head Bolts
Material	Carbon Steel, Stainless Steel 201/ 304/ 316 or others.
Size	M6--M24
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

1. Reliable Supplier

2. High Quality

3. Standard Producing Technology

4. Competitive Factory Price

5. Fast Delivery

Product Picture：

DIN931 Hexagon Head Bolts

Q: What is the role of flat washers? There is a friend who can introduce: to Increase the stability factor to make it more stable

Q: The idiom of the screw: Meaning modesty, that their own small insignificant, insignificant but indispensable.

Q: Why do you have to add a spring washer when it comes to the role of ah ah ah: Reinforce and prevent looseningImagine the screw into the threaded hole, if the equipment for a long period of vibration, screw and screw combination may be loose, or even fall off

Q: Screws, bolts, screws, what is the difference between the three ah?: Screws are more general. The exact statement should be bolts, screws, and screw caps. Bolts and screws are round bar objects, engraved with equal spacing thread. Bolts are flat head cylindrical type; the screw is the front is pointed like a nail. The bolts must be used with the screw cap, or on objects that have been threaded. Screws are used in relatively soft or relatively thin objects, when used with their own thread side of the rotation side of the forward drilling. The threads on the bolts are relatively shallow without the edges; the threads on the screws are sharper and the threads are deeper, facilitating drilling into the objects. Most bolts and screws require a simple and easy tool - the screwdriver.

Q: M4.8 * 25 What does it mean in screw size?: No meaning that there is no one of the most close to the national standard is, M5 * 25 For example, GB70.1, M5 × 25 hexagon socket head cap screws

Q: Was rusty rust, the screwdriver are turning how to do, is a very important thing: 1 shock: for the rusty screws, do not use a wrench hard to prevent the screw screw six edges and corners, screw off the screw or wrench bad wrench. At this point, you can use the hammer gently shake the handle of the wrench, the general rust-proof screws can be twisted under the vibration. 2 knock: with the edge of the top hammer, knocking the corrosion of the nut, it is easy to loose nut. For example, the bike's feet at both ends of the fixed bolt nut, according to the foot pedal thickness, metal structure, grasp the size of the force hit the nut. Cast iron at the nut can be slightly larger force, plastic to gently beat. If you still can not, then use the hammer along the direction of the circle beat the nut, you can easily remove the nut.

Q: What is the effect of the screw?: The machine screw is mainly used for a fastening screw hole part, with a through hole between the parts of the fastening connection, no need to match the nut (this connection is called the screw connection, also belong to the detachable connection; Used in conjunction with nuts for fastening connections between two parts with through holes.) Also the most common screws.

Q: The main meaning is that the design to make some specific requirements to achieve consistency.: Specification is: can not affect the performance of the product being used, and fully guarantee the effect of fastening.

Q: How much is a screw?: If the inside of the screw is not the same specifications, the same material, even if not how much money out of a.

Q: Engineering argument, usually referred to as the M3 screw, M refers to what is the meaning? The Please instruct the engineering staff.: M: ordinary thread;: screw that thread diameter (ie, the top of the thread) is 3mm, nuts that thread diameter

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