DIN7504K JIS B1124 Washer Head with EPDM Washer self tapping Screw Self Drilling Screw

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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 


DIN7504K JIS B1124 Washer Head with EPDM Washer self tapping Screw Self Drilling Screw

Company cover                

5000 square meter                


80-100 people                


50 sets                

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Q:Why the screw thread more closely, spin into the more effort?
Because the length of the screw into a certain, do a certain job. The more tight the thread, the equivalent of the longer the distance rotation, power = distance × force, long distance, the need for force naturally small
Q:What is a self-tapping nail? Is it used? What are the characteristics of the shape? What is the difference with ordinary screws?
Is the head with a sharp screw, turn the screwdriver can be automatically drilled into the object, divided into stainless steel and galvanized and colorful three
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:What is the meaning of the screw and the 4 and 8?
Screw should be written on the 4.8 bar, 4.8 on behalf of the strength level
Q:What is the damage to the mouth of the screw?
If the screw nail head on the outside, you can use the hacksaw saw a word again, and then use a relatively large one screwdriver out, if it is Shen head head, only slowly with a file to do, and then screwdriver.
Q:M4.8 * 25 What does it mean in screw size?
M4.8 is the screw size 25 is the length of the screw
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:Why are the screws of the screw?
I have not heard the concept of non-standard thread, because the thread is used to assemble, so the lathe in the car thread, the amount of feed and other parameters are given.
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.

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