DIN6921 Hex Head Bolts With Flange For Barn Construction Water
Proof Stainless Steel/Carbonsteel Grade4.8,8.8,10.9,A2-70
Features:
- Hexagonal Head: The bolts feature a hexagonal head design, which allows them to
be easily installed and removed using various standard tools, such
as wrenches or screwdrivers.
- Flange Design: The bolts come with a flange, an enlarged portion typically
located just below the head of the bolt. This design helps create a
tighter seal between the bolt and the connecting material,
enhancing waterproofing capabilities.
- Waterproof Performance: Due to their unique flange design, these bolts offer exceptional
waterproofing capabilities, reducing the risk of moisture
penetration and corrosion.
- Material: They are typically made from corrosion-resistant materials like
stainless steel or galvanized steel, making them suitable for
various harsh environments.
Advantages:
- Water Resistance: In applications requiring waterproofing, such as outdoor
structures, bridges, and water treatment facilities, these bolts
provide excellent waterproofing capabilities, protecting the
structure from moisture damage.
- Corrosion Resistance: Made from corrosion-resistant materials, these bolts maintain
their performance in harsh environments, reducing the need for
frequent maintenance and replacements.
- Ease of Use: The hexagonal head design makes these bolts easy to install and
remove, improving work efficiency.
- Enhanced Sealing: The flange design enhances the seal between the bolt and the
connecting material, further 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.
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 |