Bolt washer
EN 28738 steel zinc plated thick-layer passivation
WSH-EN28738-(ZSM)-12
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Connection elements with galvanised chromium (VI)-free thick-film passivation (ZSM) offer a future-proof alternative to surfaces containing chromium (VI). The coating consists of a zinc layer with passivation on a chromium (III) basis with sealing. Washers with ZSM coating can be paired with ZSML as well as VZD-coated threaded parts.
Overview of advantages:
- Chromium (VI)-free alternative to A2C or A3C
- Thermal capacity up to 120°C
- Even coat distribution
- Functional and decorative
Datasheets(X)
 | |
Suitable for screw thread | M12 |
Internal diameter (d1) | 12 mm |
Outer diameter (d2) | 20 mm |
Thickness (h1) | 3 mm |
Standards | EN 28738 |
Material | Steel |
Surface | Zinc plated thick-layer passivation |
RoHS-compliant | Yes |
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