DIN933 ISO4017 EN24017 Hexagon Head Bolts - Full Thread Dacromet Carbon Steel/Alloy Steel Class 8.8 10.9
Characteristics:
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High Corrosion Resistance: The Dacromet coating offers excellent corrosion resistance, providing up to 7-10 times more protection than traditional electrogalvanizing.
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Good Heat Resistance: The coating maintains its integrity and performance even at temperatures up to 250°C, surpassing the heat resistance of traditional zinc coatings.
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No Hydrogen Brittleness: The Dacromet process does not involve the production of hydrogen embrittlement, which makes it suitable for high-strength steel components.
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High Penetration: The coating penetrates into fine pores of the base metal, creating a dense protective film.
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Excellent Weatherability: The coating maintains its performance under various environmental conditions.
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Strong Adhesion: The Dacromet coating adheres tightly to the base metal, preventing peeling or cracking.
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Environmentally Friendly: The process of applying the Dacromet coating is environmentally safe.
Advantages:
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Strong Binding Force: The Dacromet coating readily bonds to other metals, enhancing the overall strength and reliability of the bolted joint.
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Excellent Corrosion Protection: The coating significantly extends the service life of bolts by protecting them from corrosion.
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High Heat Resistance: Bolts with Dacromet coating can be used in high-temperature environments.
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Aesthetic Appeal: The bolts have a smooth, uniform finish that adds to their visual appeal.
Applications:
DIN 933 bolts with Dacromet coating find applications in various industries requiring high corrosion and heat resistance, such as:
- Automotive
- Motorcycles
- Transportation
- Home Appliances
- Telecommunications
- Ports and Bridges
- Agriculture
- Military
- Aerospace
| Nominal Diameter | M2 | M2.5 | M3 | (M3.5) | M4 | M5 | M6 | (M7) | M8 | M10 | M12 | (M14) | M16 |
| P | Pitch | 0.4 | 0.45 | 0.5 | 0.6 | 0.7 | 0.8 | 1 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 |
| k | Nominal Size | 1.4 | 1.7 | 2 | 2.4 | 2.8 | 3.5 | 4 | 4.8 | 5.3 | 6.4 | 7.5 | 8.8 | 10 |
| | Grade A min | 1.28 | 1.58 | 1.88 | 2.28 | 2.68 | 3.35 | 3.85 | 4.65 | 5.15 | 6.22 | 7.32 | 8.62 | 9.82 |
| | Grade A max | 1.52 | 1.82 | 2.12 | 2.52 | 2.92 | 3.65 | 4.15 | 4.95 | 5.45 | 6.56 | 7.68 | 8.98 | 10.18 |
| | Grade B min | / | / | / | / | 2.6 | 3.26 | 3.76 | 4.56 | 5.06 | 6.11 | 7.21 | 8.51 | 9.71 |
| | Grade B max | / | / | / | / | 3 | 3.74 | 4.24 | 5.04 | 5.54 | 6.69 | 7.79 | 9.09 | 10.29 |
| s | max=nominal size | 4 | 5 | 5.5 | 6 | 7 | 8 | 10 | 11 | 13 | 17 | 19 | 22 | 24 |
| | Grade A min | 3.82 | 4.82 | 5.32 | 5.82 | 6.78 | 7.78 | 9.78 | 10.73 | 12.73 | 16.73 | 18.67 | 21.67 | 23.67 |
| | Grade B min | / | / | / | / | 6.64 | 7.64 | 9.64 | 10.57 | 12.57 | 16.57 | 18.48 | 21.16 | 23.16 |
| e | Grade A min | 4.32 | 5.45 | 6.01 | 6.58 | 7.66 | 8.79 | 11.05 | 12.12 | 14.38 | 18.9 | 21.1 | 24.49 | 26.75 |
| | Grade B min | / | / | / | / | 7.5 | 8.63 | 10.89 | 11.94 | 14.2 | 18.72 | 20.88 | 23.91 | 26.17 |
| Nominal Diameter | (M18) | M20 | (M22) | M24 | (M27) | M30 | (M33) | M36 | (M39) | M42 | (M45) | M48 | (M52) |
| P | Pitch | 2.5 | 2.5 | 2.5 | 3 | 3 | 3.5 | 3.5 | 4 | 4 | 4.5 | 4.5 | 5 | 5 |
| k | Nominal Size | 11.5 | 12.5 | 14 | 15 | 17 | 18.7 | 21 | 22.5 | 25 | 26 | 28 | 30 | 33 |
| | Grade A min | 11.28 | 12.28 | 13.78 | 14.78 | / | / | / | / | / | / | / | / | / |
| | Grade A max | 11.72 | 12.72 | 14.22 | 15.22 | / | / | / | / | / | / | / | / | / |
| | Grade B min | 11.15 | 12.15 | 13.65 | 14.65 | 16.65 | 18.28 | 20.58 | 22.08 | 24.58 | 25.58 | 27.58 | 29.58 | 32.5 |
| | Grade B max | 11.85 | 12.85 | 14.35 | 15.35 | 17.35 | 19.12 | 21.42 | 22.92 | 25.42 | 26.42 | 28.42 | 30.42 | 33.5 |
| s | max=nominal size | 27 | 30 | 32 | 36 | 41 | 46 | 50 | 55 | 60 | 65 | 70 | 75 | 80 |
| | Grade A min | 26.67 | 29.67 | 31.61 | 35.38 | / | / | / | / | / | / | / | / | / |
| | Grade B min | 26.15 | 29.16 | 31 | 35 | 40 | 45 | 49 | 53.8 | 58.8 | 63.1 | 68.1 | 73.1 | 78.1 |
| e | Grade A min | 30.14 | 33.53 | 35.72 | 39.98 | / | / | / | / | / | / | / | / | / |
| | Grade B min | 29.56 | 32.95 | 35.03 | 39.55 | 45.2 | 50.85 | 55.37 | 60.79 | 66.44 | 71.3 | 76.95 | 82.6 | 88.25 |
Jiangsu Ying Yan Fastening System Technology Co.Ltd
Jiangsu Ying Yan Fastening System Technology Co. Ltd was founded in
2002. It is located in Wujiang Fenhu High-tech Industrial
Development Zone, Suzhou City. It has a superior geographical
location and convenient transportation. It is a professional
fastener manufacturer integrating R&D, production and sales
manufacturer. The company has established a complete quality
management system, invested heavily in the establishment of R&D
technology centers, introduced high-tech talents, and used the ERP
system for efficient and orderly management. The company has been
adhering to the principle of mutual benefit and win-win cooperation
with customers from different industries for many years. The value
and significance of an enterprise do not lie in the so-called
success for a while, but in the ability to create more social value
and assume social responsibility while continuously creating
economic value.
In the 24 years of development, Jiangsu Ying Yan Fastening System
Technology Co. Ltd has always adhered to the development concept of
"creating excellent quality with the heart of a craftsman", and
also adhered to the operating principle of "innovation, quality,
service, gratitude" to absorb New ideas, strict quality control,
all-round service for the purpose. With the continuous development
and growth of the company, we will continue to pursue the above
concepts, principles and purposes, use the wisdom created by
ingenuity to create fastener products, provide competitive
industrial product solution services, and continue to create the
greatest value for customers. Value, become the ultimate choice for
end customers.
Persevere in building Yingyan fastening system technology into a
benchmark enterprise in the domestic and foreign fastener industry,
and write the industry legend of domestic fastener products!
