Standard:SAE
Description:
Black oxide flat steel washers are commonly available in the market and can be used in various applications.A black oxide finish is a surface treatment that provides a dark, protective coating on the washer. It enhances the visual appearance of the washer and offers some level of corrosion resistance.
Here are the correct details regarding the SAE washer with a black oxide finish:
Size range: The SAE washer with a black oxide finish is available in a range of sizes, typically specified in inches. The common size range for these washers is 1/4" to 3" in diameter. This allows them to accommodate different sizes of bolts or nuts.
Finish: The black oxide finish provides a dark coating on the surface of the washer. It serves both aesthetic and functional purposes, enhancing the appearance of the washer while also offering some protection against corrosion.
Material: SAE washers are typically made of steel, but the specific grade of steel can vary. Commonly used steel grades include low or medium carbon steel.
Function: The primary function of the SAE washer is to distribute the load and provide a smooth bearing surface under the head of a bolt or the nut. This helps prevent damage to the mating surface, reduces the chance of loosening due to vibrations, and improves the overall stability and performance of the fastener connection.
| Material | 45#/40CR |
| Size | 1/4"-3" |
| 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(max) |
Inner diameter(min) |
Outside diameter(max) |
Outside diameter(min) |
Thickness (max) |
Thickness (min) |
| 1/4" | 16.26 | 15.75 | 7.52 | 7.01 | 2.03 | 1.3 |
| 5/16" | 17.36 | 17.3 | 9.12 | 8.61 | 2.03 | 1.3 |
| 3/8" | 21 | 20.45 | 10.59 | 10.19 | 2.03 | 1.3 |
| 7/16" | 23.8 | 23.24 | 12.29 | 11.79 | 2.03 | 1.3 |
| 1/2" | 27.74 | 26.8 | 13.87 | 13.36 | 3.07 | 1.88 |
| 9/16" | 30.12 | 29.18 | 15.47 | 14.96 | 3.07 | 1.88 |
| 5/8" | 34.09 | 33.15 | 17.42 | 16.48 | 3.07 | 1.88 |
| 3/4" | 38.07 | 37.13 | 21.39 | 20.45 | 4.06 | 2.74 |
| 7/8" | 45.21 | 44.27 | 24.58 | 23.65 | 4.06 | 2.74 |
| 1" | 51.56 | 50.62 | 27.74 | 26.8 | 4.06 | 2.74 |
| 1-1/8" | 57.91 | 56.97 | 32.51 | 31.57 | 4.06 | 2.74 |
| 1-1/4" | 64.26 | 63.32 | 35.69 | 34.75 | 4.88 | 3.45 |
| 1-3/8" | 70.61 | 69.67 | 38.86 | 37.92 | 4.88 | 3.45 |
| 1-1/2" | 76.96 | 76.02 | 42.04 | 41.1 | 4.88 | 3.45 |
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