Screw DIN 7985 M4x20 4,8 zinc-nickel black PH2
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Відеоінструкція:
Article no.
7985-4-20-4,8цнчph
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Packaging
1000 pcs.
Weight
2,29 kg
Price incl. VAT, 1 pc
1,08
UAH
Quantity, pcs.
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10 876.60 грн
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0
A screw with a semi-round head looks like a regular metal rod with a head at one end that transmits torque and external threads at the other end. The screw head is needed to press the parts of the structure being joined together using special tools (wrench, screwdriver, pneumatic or electric gun, etc.).
Scope of use: ideal for screw connections in mechanical engineering.
Material: steel, strength class 4.8.
Coating: black zinc-nickel. Zinc-nickel coating is an innovative anti-corrosion solution for fasteners, combining high protective properties, mechanical strength, and environmental safety.
The key advantages of zinc-nickel coating are:
- Excellent corrosion resistance - more than three times higher than that of conventional zinc;
- Low risk of hydrogen embrittlement;
- Compatibility with aluminum - does not form galvanic couples and does not cause corrosion in combination with aluminum parts;
- Increased heat resistance - retains its protective properties during temperature changes and during prolonged operation in high-temperature conditions;
- Mechanical strength - harder than pure zinc, has better resistance to scratches and wear;
- Environmental friendliness - less oxidation products are formed, resulting in lower zinc emissions into the environment throughout the product's life cycle.
- Aesthetics and inconspicuousness - the coating has a deep black color, which makes it inconspicuous.
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