Standard:F436
Description:
The F436 washer, also known as a heavy washer, is a type of washer commonly used in structural applications, particularly in conjunction with high-strength bolts. These washers help distribute the load and provide a larger bearing surface under the bolt head or nut.
The 1/4" - 4" size range indicates that F436 washers are available in various diameters, ranging from 1/4 inch to 4 inches.
Regarding the surface finish, F436 washers can be available with a black oxide finish. Black oxide is a conversion coating that forms a thin layer of black oxide on the surface of the washer. This finish provides some corrosion resistance and also offers an attractive black appearance.
The black oxide finish helps to improve the durability and resistance to rust of the washer, making it suitable for applications where moderate corrosion resistance is required.
The choice of black oxide finish for F436 washers can provide a combination of functionality and aesthetics, particularly in applications where both corrosion resistance and visual appeal are important factors. However, please note that black oxide may not provide the same level of corrosion protection as other finishes such as zinc plating or hot-dip galvanizing. If you require higher levels of corrosion resistance, you may consider alternative surface finishes or coatings.
| Material | 45#/40CR |
| Size | 1/4"-4" |
| Finish | Plain/black/ZINC/HDG/Dacromet/Mechanical Galvanized |
| Hardness | HV300/HRC35-45 |
| Marking | can be Customized |
| Application | Constrution/Wind turbines/railway line |
| Packing | Carton+ pallet; we can pack washers as your requirements |
| Terms | FOB+shanghai/ningbo |
| Delivery time | 30-70days |
| size | Inner diameter(min) | Inner diameter(max) | Outside diameter (min) | Outside diameter (max) | Thickness (max) | nominal size | Thickness (min) |
| 1/4" | 7.137 | 7.925 | 15.087 | 15.875 | 2 | 1.65 | 1.2954 |
| 5/16" | 8.737 | 9.525 | 16.662 | 17.45 | 2 | 1.65 | 1.2954 |
| 3/8" | 10.312 | 11.1 | 19.837 | 20.65 | 2 | 1.65 | 1.2954 |
| 7/16" | 11.912 | 12.7 | 22.63 | 23.41 | 2 | 1.65 | 1.2954 |
| 1/2" | 13.487 | 14.3 | 26.187 | 27.787 | 4.95 | 3.47 | 2.4638 |
| 9/16" | 15.087 | 15.9 | 29.311 | 30.91 | 4.95 | 3.47 | 2.4638 |
| 5/8" | 17.45 | 18.26 | 32.537 | 34.137 | 4.95 | 3.8 | 3.0988 |
| 3/4" | 20.65 | 21.43 | 37 | 38.1 | 4.95 | 3.8 | 3.0988 |
| 7/8" | 23.8 | 24.587 | 43.662 | 45.237 | 4.95 | 3.97 | 3.4544 |
| 1" | 28.575 | 29.36 | 50.012 | 51.587 | 4.95 | 3.97 | 3.4544 |
| 1-1/8" | 31.75 | 32.537 | 56.362 | 57.937 | 4.95 | 3.97 | 3.4544 |
| 1-1/4" | 34.925 | 35.712 | 62.712 | 64.287 | 4.95 | 3.97 | 3.4544 |
| 1-3/8" | 38.10 | 39.7 | 68.25 | 70.63 | 4.95 | 3.97 | 3.4544 |
| 1-1/2" | 41.275 | 42.062 | 75.412 | 76.987 | 4.95 | 3.97 | 3.4544 |
| 1-5/8" | 44.45 | 46.01 | 80.99 | 84.11 | 7.1 | 6 | 4.53 |
| 1-3/4" | 47.63 | 49.23 | 84.12 | 87.29 | 7.1 | 6 | 4.53 |
| 1-7/8" | 50.80 | 52.36 | 87.34 | 90.46 | 7.1 | 6 | 4.53 |
| 2" | 53.98 | 55.58 | 93.65 | 96.81 | 7.1 | 6 | 4.53 |
| 2-1/4" | 60.33 | 61.93 | 100 | 103.16 | 8.62 | 7.3 | 6.1 |
| 2-1/2" | 66.68 | 68.28 | 112.7 | 115.86 | 8.62 | 7.3 | 6.1 |
| 2-3/4" | 73.03 | 74.63 | 125.4 | 128.56 | 8.62 | 7.3 | 6.1 |
| 3" | 79.38 | 80.98 | 138.1 | 142.82 | 8.62 | 7.3 | 6.1 |
| 3-1/4" | 85.73 | 88.9 | 149.23 | 155.52 | 8.62 | 7.3 | 6.1 |
| 3-1/2" | 92.08 | 95.25 | 161.93 | 168.22 | 8.62 | 7.3 | 6.1 |
| 3-3/4" | 98.43 | 101.6 | 174.63 | 180.92 | 8.62 | 7.3 | 6.1 |
| 4" | 104.78 | 107.95 | 187.33 | 193.62 | 8.62 | 7.3 | 6.1 |
Products pictures for Flat washers
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F436 Washer/Heavy Washer, 1/4" - 4", Black Oxide Images
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