Hobson H9 Impact Washer, 1/2"
The price shown is for the pack.
Available
The Hobson H9 impact washer comes in 13 sizes (zinc yellow passivate): 1/4" to 1-1/2". These are H9 impact flat washers with the hardness range in HRC, the Rockwell C scale. The hardness is 43-49 HRC.
Where this product is used
- Under the nut or bolt head of a bolted joint where a hardened flat washer is specified
- Spreading the clamping load of a bolt over a larger area
Features
- 13 items: 1/4" to 1-1/2"
- Zinc yellow passivate
- Hardness 43-49 HRC
- Pack quantity shown for each item
Key specifications
| Specification | Detail |
|---|---|
| Brand | Hobson |
| Sizes | 1/4" to 1-1/2" |
| Finish | Zinc yellow passivate |
| Hardness | 43-49 HRC |
Choosing the right option
Washer size is the bolt size in inches; check it against the bolt you are using. Zinc yellow passivate is zinc plating with a yellow chromate topcoat (this is the ZY).
Related washers: Hobson Imperial Flat Round Sampson Washer, 38-45HRC, Plain, 1/4" to 3", Hobson Imperial Flat Round Sampson Washer, 38-45HRC, Xylan Blue, 1/2" to 1-1/2" and Hobson Flat Round Hardened Washer, 35-41 HRC, Hot Dip Galvanised, M10 to M56.
| Option | Part number | SKU |
|---|---|---|
| 1/2 | WRH9Y050 | A0135556 |
| 3/8 | WRH9Y037 | A0135554 |
| 7/16 | WRH9Y043 | A0135555 |
| 1 | WRH9Y100 | A0135560 |
| 1-1/8 | WRH9Y112 | A0135561 |
| 3/4 | WRH9Y075 | A0135558 |
| 5/8 | WRH9Y062 | A0135557 |
| 7/8 | WRH9Y087 | A0135559 |
| 1-1/4 | WRH9Y125 | A0135562 |
| 1-3/8 | WRH9Y137 | A0135563 |
| 1-1/2 | WRH9Y150 | A0135564 |
| 1/4 | WRH9Y025 | A0135552 |
| 5/16 | WRH9Y031 | A0135553 |
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Hobson H9 Impact Washer, 43-49 HRC, Zinc Yellow Passivate, 1/4" to 1-1/2": 1/2
SKU: A0135556 | Model: WRH9Y050
Hobson WRH9Y050: 1/2" H9 impact washer, 43-49 HRC, zinc yellow passivate. Pack of 200.


