Standard:SAE
Description:
SAE washers or high tensile washers in the size range of 1/4" to 3" can also be available with zinc plated or hot-dip galvanized (HDG) finishes.
Zinc plated washers are coated with a layer of zinc through a process called electroplating. This coating provides a moderate level of corrosion resistance and helps to prevent rusting. Zinc plated washers are commonly used in various applications to protect the underlying metal from oxidation and enhance their appearance.
HDG, or hot-dip galvanized, refers to a process where the washers are dipped into a bath of molten zinc. This results in a thick, durable coating that provides excellent corrosion resistance. HDG washers are commonly used in outdoor or high-moisture environments where maximum protection against rust and corrosion is required.
When SAE washers or high tensile washers are specified as "Zinc plated/HDG," it means that these washers can be available with either a zinc plated finish (electroplated zinc coating) or an HDG finish (hot-dip galvanized coating) depending on the specific requirements or preferences of the application.
The choice between zinc plated and HDG finishes depends on factors such as the level of corrosion protection needed, the environmental conditions the washers will be exposed to, and the desired longevity of the coating. HDG provides superior corrosion resistance compared to zinc plating but may have a different appearance due to the thicker coating.
| 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 |
Products pictures for Flat washers
