Product Description
Hot dip galvanized square washers are stamped from high-quality carbon steel and undergo a hot-dip galvanizing process for surface treatment. Their square design provides a larger contact area, effectively distributing pressure and preventing damage to the surfaces of fasteners, while significantly enhancing the stability and durability of the connection.
This product is widely used in outdoor projects and heavy-duty applications, and is particularly suitable for scenarios requiring high corrosion resistance.
Product Specifications
|
Product Name |
Hot-dip galvanized square washers, hot-dip galvanized square washers, square flat washers, oversized square washers |
|
Standards |
DIN 436, GB / Customizable according to drawings |
|
Material |
Q235 Carbon Steel / Q355B |
|
Surface Treatment |
Hot-dip Galvanized |
|
Structure |
Square flat washer with a central round hole, thick zinc coating, heavy-duty corrosion-resistant type |
Standard Size Chart (mm)
|
Compatible bolts |
Inner Diameter d |
Square Side Length B |
Thickness t |
|
M6 |
6.4 |
16 |
1.6–3 |
|
M8 |
8.4 |
20 |
2–3 |
|
M10 |
10.5 |
25 |
2.5–4 |
|
M12 |
13.0 |
30 |
3–5 |
|
M14 |
15.0 |
35 |
3–5 |
|
M16 |
17.0 |
40 |
3–6 |
|
M20 |
21.0 |
50 |
4–8 |
|
M24 |
25.0 |
60 |
5–10 |
|
M30 |
31.0 |
70 |
6–10 |
Product Features
The washers are treated using a hot-dip galvanizing process, which forms a dense zinc layer on the steel surface, providing excellent resistance to oxidation and corrosion. Even in humid, rainy, or salt-fog environments, they can be used for long periods without rusting.
Compared to standard round washers, square washers have a larger contact area, effectively dispersing bolt pressure and preventing localized stress concentration. They are particularly suitable for materials prone to damage, such as wood and thin sheets.
Hot-dip galvanized square washers are manufactured from high-quality carbon steel, offering excellent mechanical properties. They can withstand significant clamping forces and are suitable for heavy-duty structural connections.
The square design prevents rotation or displacement during installation, enhancing the overall stability of the fastening system and reducing the risk of loosening.
The hot-dip galvanized coating features uniform thickness and strong adhesion, making it particularly suitable for long-term outdoor exposure to elements such as wind, sun, rain, or industrial corrosion.
Applications
- Power transmission towers, communication towers, wind turbine towers
- Solar mounting systems, steel-structured industrial buildings, bridge engineering
- Outdoor streetlights, billboards, guardrails, curtain walls
- Port terminals, coastal facilities, wastewater treatment plants
- Cable trays, bus ducts, heavy equipment foundations
- Outdoor infrastructure projects requiring high corrosion resistance
FAQ
1. Can you customize non-standard washers?
Yes, we offer comprehensive customization options, including dimensions, special materials and hardness levels, special surface treatments, and packaging. We can proceed with production after receiving your drawings and confirming the samples.
2. Can you provide samples?
We can provide free samples (1–10 pieces) for quality inspection; the customer is responsible for shipping costs. Samples can be shipped within 1–3 days.
3. Why do washers deform, break, or fail?
Common causes include: material that is too soft or too hard, excessive stress, uneven installation, severe corrosion leading to reduced strength, or failure to use anti-loosening washers in vibrating environments. We can provide selection and installation recommendations.
4. Besides hot-dip galvanizing, what other surface treatments are available for washers?
Common surface treatments include: electrogalvanizing (blue-white zinc, colored zinc, black zinc), blackening, phosphating, stainless steel passivation, Dacromet, and Jumet, as well as other high-corrosion-resistant treatments.
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