| Applicable thread |
M12 |
M16 |
M20 |
(M22) |
M24 |
(M27) |
M30 |
M36 |
| d |
Max |
13.43 | 17.43 | 21.52 | 23.52 |
25.52 | 28.52 | 31.62 | 37.62 |
| Min |
13 | 17 | 21 | 23 |
25 | 28 | 31 | 37 |
| dc |
Max |
25 | 33 | 40 | 42 |
47 | 52 | 56 | 66 |
| Min |
23.7 | 31.4 | 38.4 | 40.4 |
45.4 | 50.1 | 54.1 | 64.1 |
| h |
Nominal |
3 | 4 | 4 | 5 |
5 | 5 | 5 | 5 |
| Max |
3.8 | 4.8 | 4.8 | 5.8 |
5.8 | 5.8 | 5.8 | 5.8 |
| Min |
2.5 | 3.5 | 3.5 | 4.5 |
4.5 | 4.5 | 4.5 | 4.5 |
| d1 |
Max |
16.04 | 20.04 | 25.24 | 27.44 |
29.44 | 33.4 | 36.4 | 43.4 |
| Min |
15.2 | 19.2 | 24.4 | 26.4 |
28.4 | 32.4 | 35.4 | 42.4 |
| 1,000-piece weight (steel) ≈ kg |
7.06 | 16.92 | 24.7 | 33.15 |
43.34 | 51.45 | 58.66 | 80.97 |
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1. Material Selection
Select appropriate materials according to environmental requirements, such as carbon steel, stainless steel, etc.
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2. Thickness Requirements
Choose an appropriate thickness based on the required load and specific mechanical conditions.
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3. Dimensional Specifications
Pay close attention to inner diameter, outer diameter, and thickness to ensure they meet your application requirements.
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4. Quality Assurance
Select products with excellent manufacturing processes to ensure stability and long-term durability.
Summary: Galvanized flat washers are essential fastener accessories widely used in the electromechanical equipment industry. When purchasing, always consider the specific environmental requirements to ensure safety and performance.
❓ Frequently Asked Questions
Q: What is a DIN 125 galvanized plain washer used for?
DIN 125 galvanized plain washers are used to distribute the load of a threaded fastener, such as a bolt or nut, over a larger surface area. The galvanized coating provides corrosion resistance, making them suitable for both indoor and outdoor applications.
Q: What thread sizes are available for DIN 125 galvanized washers?
These washers are available for a range of standard thread sizes including M12, M16, M20, M22, M24, M27, M30, and M36, covering most industrial fastening needs.
Q: What materials are DIN 125 flat washers typically made from?
They are commonly manufactured from carbon steel with a hot-dip or electro-galvanized finish. Stainless steel variants are also available for highly corrosive environments like marine applications.
Q: How do I choose the correct thickness?
The correct thickness (h) should be selected based on the load requirements. Refer to the specification table for nominal, maximum, and minimum values corresponding to each thread size.
Q: What is the difference between inner diameter (d) and countersunk diameter (d1)?
Inner diameter (d) fits over the bolt shank, while d1 refers to the countersunk or chamfered bore diameter on one face. Both have specific tolerances to ensure proper fit and load distribution.
Q: How is the weight calculated for bulk orders?
The weight is provided per 1,000 pieces in kilograms. For example, M12 washers weigh approx 7.06 kg per 1,000 units, while M36 washers weigh approx 80.97 kg. This helps in logistics and cost estimation.
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