DIN985 Self-locking Hexagon Nut M3 -M20

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Product Name

DIN985 Self-locking  Hexagon Nut   M3 -M20


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



Standard Model


Min Order

1000piece/ pieces

Packaging & Shipping


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.

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1. Reliable Supplier

2. High Quality

3. Standard Producing Technology

4. Competitive Factory Price

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Q:How to rust the screw
First with gasoline drops into the gap, a few minutes later and then drip a little oil, wipe the cross groove, and then screwdriver twist, not on the use of clamp clamp clamped after the screw, such as cross recess round, On the use of steel saw saw a word slot, for the word screwdriver twist, the last one with a drill to the bolt screw off, re-drilling punching.
Q:What is the effect of the screw?
Special purpose screws such as rings are used for lifting parts.
Q:Screw production process is how the kind of
According to the screw nut and thread size custom the corresponding mold, mold is done into the material, then the head - rubbing - surface treatment - the packaging is complete.
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:I would like to ask what is the standard gasket and gasket in general what material?
Stainless steel, there are A2 (304) or A4 (316) material or something
Q:What screw can get into the iron?
Because this screw (metal self-tapping screw) than iron, can eat iron. Coupled with its special design type, so it can be drilled less than its small diameter in the hole. So you have to first drill with a drill before drilling a hole smaller than its diameter it is possible to drill into.
Q:201 stainless steel gasket and 304 stainless steel gasket which is soft
Looks like 304, you this is the United States brand? It is recommended that you download a mechanical manual, look at their mechanical properties
Q:Is the tail screw? If it is mainly used in what place? If not what are they different?
This kind of screw called what I really do not know its name, the use of the place to see really not much, I see the place are generally used in machinery and equipment above, as you said what role, my personal point of view is To prevent slipping, because it is the head of a large slip wire, need to hand to adjust to the correct position to fall off, know that so much, not professional, Oh ~ hope to help you! The
Q:This screw ye use, and how to use next to the cover
With the use of electric drill, with the corresponding screw bit on the wall where the need to make a hole, talk about the plastic protrusion into the hole into the hole, then the screw on the.
Q:Flat gasket with what material
According to the flat washer performance grade, recommend the use of materials:For the 100HV level can choose ST12, ST13 and Q235, Q215, Q195, etc., the surface hardness can reach about 110HV;For the 140HV level can choose 08F, 08Al and 10, 10F, etc., the surface hardness can reach about 140HV;For the 200HV and 300HV level should choose 45, 50, 60, 70 steel or 65Mn steel, heat treatment can be quenched and tempered to reach the technical requirements of 200 ~ 300HV and 300 ~ 400HV.

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