Hobson WRH9Y050 1/2" H9 Impact Washer, 43-49 HRC, Zinc Yellow Passivate
Available
This page lists 13 items of the Hobson H9 impact washer (zinc yellow passivate): 1/4" to 1-1/2".
The supplier lists these as H9 impact flat washers with a hardness range given in HRC, the Rockwell C scale. The supplier information does not explain the H9 name.
The supplier lists a hardness of 43-49 HRC (manufacturer-stated).
Pack quantity varies by size and is shown for each item in the table.
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 (manufacturer-stated)
- Pack quantity shown for each item
Common specifications
| Specification | Detail |
|---|---|
| Sizes | 1/4" to 1-1/2" |
| Finish | Zinc yellow passivate |
| Hardness | 43-49 HRC (manufacturer-stated) |
Key specifications
| Model | Size | Supplied as |
|---|---|---|
| WRH9Y025 | 1/4" | Pack of 200 |
| WRH9Y031 | 5/16" | Pack of 200 |
| WRH9Y037 | 3/8" | Pack of 200 |
| WRH9Y043 | 7/16" | Pack of 200 |
| WRH9Y050 | 1/2" | Pack of 200 |
| WRH9Y062 | 5/8" | Pack of 100 |
| WRH9Y075 | 3/4" | Pack of 50 |
| WRH9Y087 | 7/8" | Pack of 50 |
| WRH9Y100 | 1" | Pack of 50 |
| WRH9Y112 | 1-1/8" | Pack of 20 |
| WRH9Y125 | 1-1/4" | Pack of 10 |
| WRH9Y137 | 1-3/8" | Pack of 10 |
| WRH9Y150 | 1-1/2" | Pack of 10 |
Selecting the right option
Washer size is the bolt size in inches; check it against the bolt you are using. The supplier information gives no outside diameter or thickness for these items, so check the dimensions with Hobson if they matter for your joint. Zinc yellow passivate is zinc plating with a yellow chromate topcoat (the Hobson acronym list names this ZY) (manufacturer-stated).
Related products
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.
Resources
Couldn't load pickup availability
Secure Checkout. We do not store credit card details
-
1/2
Model Number: WRH9Y050
-
3/8
Model Number: WRH9Y037
-
7/16
Model Number: WRH9Y043
-
1
Model Number: WRH9Y100
-
1-1/8
Model Number: WRH9Y112
-
3/4
Model Number: WRH9Y075
-
5/8
Model Number: WRH9Y062
-
7/8
Model Number: WRH9Y087
-
1-1/4
Model Number: WRH9Y125
-
1-3/8
Model Number: WRH9Y137
-
1-1/2
Model Number: WRH9Y150
-
1/4
Model Number: WRH9Y025
-
5/16
Model Number: WRH9Y031
