AASHTO M180
Guardrail Washer
Part of the Guardrail Accessories range · Highway Guardrail.
Model: Guardrail washer
The guardrail washer sits under the bolt head on every beam-to-post connection, spreading the load across the slotted hole so the section is not crushed as the bolts are torqued down. Washer for guardrail and bolt, Secure the bolts to the guardrail Highway guardrail bolts and nuts are mainly used between guardrail and spacer, spacer and post, They play a fixed role When the vehicle collides with it, the corrugated steel guardrail board has…
- Standard AASHTO M180 / EN 1317
- Material Q235B / Q345B steel
- Surface Hot-dip galvanized, ≥ 550 g/m²
- MOQ 1 × 20GP container
- Lead time 15–25 days
- Mill test certificate with every shipment
- Shop drawings and setting-out plan included
- Custom lengths, hole patterns and coating weights
Technical specification
| Profile | Guardrail Washer |
| Material | Q235B / Q345B steel (S235JR / S355JR / ASTM A529M) |
| Surface treatment | Hot-dip galvanized; powder or PVC coated on request |
| Zinc coating | ≥ 550 g/m² (≈80 µm), AASHTO M180 |
| Standard | AASHTO M180 / EN 1317 / GB/T 31439 |
| Certificate | Mill test certificate and coating weight report with every shipment |
| Note | Custom length, hole pattern and coating weight produced to your drawing. |
Dimensions shown are the standard range. Non-standard lengths, hole patterns and coating weights are produced to order — send your drawing for a confirmation drawing.
Description
Washer for guardrail and bolt, Secure the bolts to the guardrail
Highway guardrail bolts and nuts are mainly used between guardrail and spacer, spacer and post, They play a fixed role
When the vehicle collides with it, the corrugated steel guardrail board has good crash worthiness and energy absorption, and it is not easy to be destroyed, and at the same time it can protect the vehicle and the passengers. When the road maintenance or other reasons need to be connected, the groups of guardrail columns at the opening can be easily removed and removed to open the passage for the vehicle to pass.
Key features
- Reflectors, end caps, bolts, nuts, washers and pavement markers
- Grade 8.8 bolts and hot-dip galvanized fasteners as standard
- Reflectors in white, red, yellow and dual colour, tape or moulded
- Packed as kits per barrier run so nothing is short on site
- All items hot-dip galvanized to match the beam and posts
Where it is used
- All guardrail installations
- Visibility and night-time marking
- Bolt replacement and repair
- Sign and delineator schemes
- Barrier transitions
- Site packing and delivery kits
Complete the system
A barrier is supplied as a set. These are the components that go with this item on a typical installation.
Not sure which specification fits?
Tell us the road class, design speed and the standard your client is working to. Our engineer will come back with the section, the coating weight and the post spacing that meet it — and the price for the quantity you need.
Ask an engineerOther items in this range
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Guardrail Caps
A guardrail post cap closes the top of every steel post, keeping water out of the section and…
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Guardrail Bolts and Nuts
Highway guardrail bolts and nuts are mainly used between guardrail and spacer, spacer and post, They play a…
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Guardrail Pavement Marker
A guardrail pavement marker picks out the line of the barrier at night, so a driver reads the…
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