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: The so-called 8.8 grade refers to the bolt shear stress rating of 8.8GPa

Q: What are some of the common fastener products?: This fastener has two parts of the head and the nail, the two through-hole parts to connect the role of fastening, so that they become a whole. This connection is called rivet connection, sometimes called riveting directly. This connection can not be disassembled, because the two parts to separate, then we must put the parts on the rivets to destroy.

Q: I would like to ask what is the standard gasket and gasket in general what material?: Carbon steel, if there are 45 steel, 65 manganese, that is, medium carbon steel, low carbon steel.

Q: When do flat washers use GB95 when using GB97.1?: See tolerance, high requirements with GB97.1. if in order to save money, and the application environment is not high, use GB95.

Q: For the commonly used standard parts, for some of the quality of good or bad, how to distinguish,: If the hexagonal hexagonal, with your fixed wrench or torque wrench directly try the size of the accuracy, tight to see a few times to see wear resistance.

Q: Is it hard to heat the fasteners?: Heat treatment mainly refers to the dipped fire. Dip the fire is not dipped into the water, is the oil. So the quality of oil, dipped in the temperature of the fire, dipped in the fire time are demanding Moreover, some special requirements need to double the fire, the difficulty is indeed great. In addition, heat treatment often take into account the requirements of the next step surface treatment, so have to consider

Q: Are there categories of fasteners classified by material?: According to the use of different materials, fasteners are divided into carbon structural steel fasteners, alloy structural steel fasteners, stainless steel fasteners, high temperature alloy fasteners, aluminum alloy fasteners, titanium fasteners, titanium Niobium alloy fasteners and non-metallic fasteners.

Q: How is the screw nailed to the wall: Use a hammer to make a hole in the wall, and then plug a plastic expansion tube, the last screw.

Q: how to use Motor washer: What gasket, rubber reduces vibration, metal reduces pressure

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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