DIN985 Self-locking Hexagon Nut M3 -M20

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Product Description

Product Name	DIN985 Self-locking Hexagon Nut M3 -M20
Material	Carbon Steel, Stainless Steel 201/ 304/ 316 or others.
Size	M3--M20
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：

DIN985 Self-locking Hexagon Nut M3 -M20

Q: What is the meaning of the 8.8 on the screw: Alina: refers to the strength of the thread level, the decimal point in front of the tensile strength, 8 is 800MPa, 10 is 1000MPa, the decimal point behind the value of the yield limit and the tensile limit ratio, .8 is 0.8.

Q: What is a screw? What is a nail? What is the concept? What is the difference!: Screws, screws luódīng, luósīdīng [Screw] Small cylindrical or conical metal rods with threaded parts, with a slotted or with a concave head, the use of machine nails alone? What machine nail Oh? How have I ever heard of it?

Q: What are the advantages and disadvantages of car audio modification, wood washer and plastic washer?: The plastic washer is made of plastic, plastic washer at home, also known as plastic washers, washers (Washers) resin, plastic washer or nylon washer (the most common domestic market is mostly made of plastic washer nylon 66). Compared with metal gaskets, it has excellent insulation, corrosion resistance, thermal insulation and non magnetic properties, and light weight, widely used in semiconductor, automotive, aerospace industry and interior decoration and other fields. The number of materials used as many as 10 kinds, including PA66, PC, with the best performance of special engineering plastics PEEK, with glass fiber reinforced RENY and PPS, fluorine resin PTFE, PFA and PVD, etc..Wood washer to prevent resonance, but not waterproof.

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: Install the shaft to install a few gaskets is appropriate?: As the frame five depending on the length, five links on the left side of the 68mm length of one and two on the right side, the length of the 73mm five on the left side of the right is not installed, install a washer, the thickness is the same as long as you can buy time, usually have three washers.

Q: How much is a screw?: To see what screwdriver, if it is a small screw, and then you buy more words, a single cost may be a few cents, if it is a single purchase may be more expensive.

Q: Will the stainless steel fastening standard parts of the national standard code and name?: Fasteners with the material does not matter the standard, and now the most commonly used national standards and names corresponding to the following GB5783, full-tooth hexagonal screws GB70, hexagonal hexagon head screw GB818, pan head cross slot screw GB819, countersunk head cross slot screw GB845, pan head cross slot self-tapping nail GB846, countersunk head trough self-tapping nail GB6170, ordinary hexagonal nut GB889, nylon lock nut GB96, flat pad GB93, spring pad GB869, countersunk head rivets

Q: In the design, the bolt connection is necessary to have a gasket?: It is best to add a gasket, there is an increase in friction, it is difficult to prevent aging after the screw.

Q: how to use Motor washer: Spring washer loose, as well as sealing gasket, corrugated gasket clearance

Q: What is the size of the screw for the wall power switch installation: General use M4 * 25--35 screws, the best installation of the first screw to the oil try to screw about, so easy to install.

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