Cross Recessed Pan Head Self Tapping Screw with Black Color

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50 pc
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5000000 pc/month

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Item specifice:

Material: Carbon Steel,Stainless Steel Standard: ANSI,BS,DIN,GB,ISO,JIS Power Supply: AC Power,DC Power,Gasoline,Diesel
Customized: Customized,Non-Customized Surface Treatment: Polishing,Zinc Plated,Nickel Plated,Copper Plated,Chrome Plated

Product Description:



GB, DIN, ISO, ANSI, ASME, IFI, JIS,BSW,AS,Q,HJ,                


According to your request                 


1,Stainless Steel: SUS201,SUS302,SUS303, SUS304, SUS316, SUS410, SUS430                



3,Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200CuZn37), C28000(CuZn40)                

4,Bronze: C51000, C52100, C54400, etc                

5,Aluminum: Al6061, Al6063 etc                

Aluminum Alloy: Al6061, Al6063 etc                

6,Titanium and Titanium Alloy: TAD,TA1-TA8,TB2,TC1-TC10                

7,Alloy steel: SCM435,C10B21,C10B33                


Surface treatment                

  • Bronze,Bronzy,red bronze, Chrome plate,color painted ,Nylok,ruspert,Magni,,Absorber Oil,Hardened,phosphate(black, Gray),Black,Zinc Plated,(green,black, white , blue , Yellow ,ROHS), Rainbow ,Plain, Nickel(black,white),Electrophoresis, Dacromet,

2:Business terms                



Trade terms                

EXW, FOB,CIF,CFR                


Packing: Poly bag, Small box, Plastic box, Carton, Pallet 25kgs/ carton, 36 cartons/ pallet. Carton dimension: 39cm*28cm*13.5cmpallet dimension: 100cm*100cm*80according to the customer’s requirement                

Payment terms                

TT 30% deposit in advance, 70% Balance Before shipment,                

100% LC at sight,Western Union.                 

 Ali- pay                

Sample terms                

Sample free offered if available in stock,otherwise there will be sample charge                

3. Quality control systems

Quality Certification                


ISO9001:2008, ISO14001:2004                

quality system                

100% of full line testing system, keep with the international standard                

Inspection equipment                

Caliper, Microcline, Torsion meter, Salt atmosphere testing machine, Ring gauge, General gage, sclerometer, Projector, die gage, image screening instrument                

4. Company general impression 


Company cover                

5000 square meter                


80-100 people                


50 sets                


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Q:What is the effect of the screw?
Special purpose screws such as rings are used for lifting parts.
Q:How does the screw rust die?
welding: disassemble the device, the screw off the situation is not uncommon. On the top of the screw, generally do not use electric drill, because a little accident will drill bad silk hole. The better way is to weld a long piece of iron on the wire. The cross section of the iron block is exactly the diameter of the screw. There are still selling loosening agent, but also very useful.
Q:Why a screwdriver can suck the screw
Because the top of the screwdriver with magnetic junior high school there
Q:What is the invention of the screw?
Hello hello as early as 2000 years ago appeared, but it will be used for fixed objects to be delayed until about 500 years ago. The first person who describes the spiral is the famous ancient Greek scientist Archimedes, which uses a wooden bucket to make a spiral object used to extract water from one plane to another plane for irrigation. By the middle of the Middle Ages, craftsmen used wood nails or metal nails to connect the wood structure of the building. This should be the real predecessor of the screw. In the 16th century, people began to produce spiral nails. And to the 18th world, people began a large-scale production of fastening objects with a screw nail. The afternoon is helpful to you
Q:Engineering argument, usually referred to as the M3 screw, M refers to what is the meaning? The Please instruct the engineering staff.
M is the large diameter of the screw, the diameter of the screw top of the bolt, or the diameter of the screw bottom of the nut
Q:Is the screw a bevel?
Yes, the inclination of the object can be seen as a slope This can be seen as a slide, the slide is a slope. The slope is a simple machine. The screw is screwed into a cylindrical slope, the thread on the screw is like the pattern formed in Figure (A), the length of a circle of threads is equivalent to the length of the slope.
Q:What is the size of the screw for the wall power switch installation
Concealed switch generally M5 × 30 semi-round head screws, you can also use M4 × 30 tapping screws. Ming installed switch is used M5 expansion with M5's self-tapping screws.
Q:How to look at screw models
That is, there are certain specifications of the national standard, such as: M6, M8, M10, M12, M16, M20. Which 7911131415171819 there is no. Wrench it as such as: M6 wrench, M16 wrench 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:The screw is too tight not how to do it
Skip the screws before tapping a few times. Sprinkle the rust on the screw, it should be easy to win.

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