DIN6921 Hex Head Bolts With Flange For Barn Construction Water Proof Stainless Steel/Carbonsteel Grade4.8,8.8,10.9,A2-70

Size | M5 | M6 | M8 | M10 | M12 | M14 | M16 | M20 |
d |
P | thread pitch | coarse thread | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 | 2.5 |
fin thread1 | / | / | 1 | 1.25 | 1.5 | 1.5 | 1.5 | 1.5 |
fin thread2 | / | / | / | 1 | 1.25 | / | / | / |
b | L≤125 | 16 | 18 | 22 | 26 | 30 | 34 | 38 | 46 |
125<L≤200 | / | / | 28 | 32 | 36 | 40 | 44 | 52 |
L>200 | / | / | / | / | / | / | 57 | 65 |
c | Min | 1 | 1.1 | 1.2 | 1.5 | 1.8 | 2.1 | 2.4 | 3 |
da | Type A | Max | 5.7 | 6.8 | 9.2 | 11.2 | 13.7 | 15.7 | 17.7 | 22.4 |
| Type B | Max | 6.2 | 7.4 | 10 | 12.6 | 15.2 | 17.7 | 20.7 | 25.7 |
dc | Max | 11.8 | 14.2 | 18 | 22.3 | 26.6 | 30.5 | 35 | 43 |
ds | Max | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 20 |
du | Min | 4.82 | 5.82 | 7.78 | 9.78 | 11.73 | 13.73 | 15.73 | 19.67 |
Max | 5.5 | 6.6 | 9 | 11 | 13.5 | 15.5 | 17.5 | 22 |
dw | Min | 9.8 | 12.2 | 15.8 | 19.6 | 23.8 | 27.6 | 31.9 | 39.9 |
e | Min | 8.71 | 10.95 | 14.26 | 16.5 | 17.62 | 19.86 | 23.15 | 29.87 |
f | Max | 1.4 | 2 | 2 | 2 | 3 | 3 | 3 | 4 |
k | Max | 5.4 | 6.6 | 8.1 | 9.2 | 11.5 | 12.8 | 14.4 | 17.1 |
k1 | Min | 2 | 2.5 | 3.2 | 3.6 | 4.6 | 5.1 | 5.8 | 6.8 |
r1 | Min | 0.25 | 0.4 | 0.4 | 0.4 | 0.6 | 0.6 | 0.6 | 0.8 |
r2 | Max | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.9 | 1 | 1.2 |
r3 | Min | 0.1 | 0.1 | 0.15 | 0.2 | 0.25 | 0.3 | 0.35 | 0.4 |
r4 | ≈ | 3 | 3.4 | 4.3 | 4.3 | 6.4 | 6.4 | 6.4 | 8.5 |
s | Max | 8 | 10 | 13 | 15 | 16 | 18 | 21 | 27 |
Min | 7.78 | 9.78 | 12.73 | 14.73 | 15.73 | 17.73 | 20.67 | 26.67 |
t | Max | 0.15 | 0.2 | 0.25 | 0.3 | 0.35 | 0.45 | 0.5 | 0.65 |
Min | 0.05 | 0.05 | 0.1 | 0.15 | 0.15 | 0.2 | 0.25 | 0.3 |
Features:
- These bolts adopt a standard hexagonal head design, complying with international standards, making it easy to install and remove with any standard tool.
- The design of the flange enhances its waterproofing capabilities because it is typically located just below the head of the bolt, contributing to a tighter seal between the bolt and the connecting material.
- Thanks to their unique flange design, these bolts exhibit exceptional waterproofing capabilities, significantly reducing the risks of moisture penetration and corrosion.
- Crafted from corrosion-resistant materials such as stainless steel or galvanized steel, these bolts are suitable for use in a wide range of harsh environments.
Advantages:
- Possessing superior waterproofing capabilities, these bolts are suitable for various applications requiring waterproofing, such as outdoor structures, bridges, and water treatment facilities, effectively safeguarding the structures from water damage.
- Featuring excellent quality and robust corrosion resistance, these bolts are crafted from corrosion-resistant materials, enabling them to withstand harsh environments while maintaining their performance. This, in turn, reduces the frequency of maintenance and replacements, ensuring cost-effective and reliable usage.
- Designed with a standard hexagonal head, these bolts can be easily installed and removed using standard tools, significantly enhancing work efficiency.
- The flange design significantly enhances the seal between the bolt and the connecting material, thereby improving the overall waterproofing performance of the structure.
Applications:
- Outdoor Structures: Structures such as barns, gazebos, and bridges that need to withstand weather elements can utilize these bolts to enhance structural stability and waterproofing.
- Water Treatment Facilities: In water treatment plants, swimming pools, and aquariums where a dry and clean environment is crucial, these bolts effectively prevent moisture penetration and corrosion.
- Shipbuilding and Marine Engineering: The high humidity and corrosive nature of marine environments make these bolts a suitable choice for ensuring structural stability and durability in shipbuilding and marine engineering projects.
- Other Applications Requiring Waterproofing and Corrosion Resistance: Chemical plants, sewage treatment facilities, food processing plants, and other environments requiring cleanliness and dryness can utilize these bolts to enhance waterproofing and corrosion resistance of their structures.
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!