Nord-Lock · Locking for HV and HR structural bolts
Nord-Lock Steel Construction Washers
Nord-Lock steel construction washers from R Square Technologies, an authorised Nord-Lock distributor in Chennai, supplied across India.
Made for structural steel bolting, including HV and HR bolt sets.
How it works
How steel construction washers work
This animation shows a steel construction washer pair in a structural bolt set. The washers sit under the nut and bolt head of an HV or HR assembly and lock it with cam action. The joint keeps its preload even when wind, traffic or machines shake the structure.
Official Nord-Lock Group video, played from YouTube.Specifications
Types and sizes
| Item | Detail |
|---|---|
| Bolt sets | HV and HR (EN 14399) |
| Sizes | M12 to M36 |
| Material | Steel |
| Temperature | -40°C to 150°C |
- Match the washer size to your HV or HR bolt size.
Applications
Where it is used
- Steel buildings
- Bridges
- Towers
- Cranes
Key facts
- Designed for HV and HR bolt assemblies to EN 14399
- Holds even in joints with a short clamp length
- Works on lubricated bolts
- Reusable in most cases
Supply and downloads
Supply time and documents
Supply time
Supply time depends on size, material and quantity. Send your requirement and we will confirm availability and lead time with your quote.
Ask for a quoteOfficial Nord-Lock datasheet
Free datasheets, brochures and CAD files are available from the Nord-Lock download center.
Open the Nord-Lock download center ↗R Square product PDF
Our steel construction washers PDF with specs, supply details and contacts.
Download Nord-Lock Steel Construction Washers PDFFAQ
Common questions
Which size do I need?
Use the same size as your HV or HR bolt, from M12 to M36.
Can they be used in preloaded structural joints?
Yes. They are designed for preloaded HV and HR bolt assemblies.
Can they be reused?
Yes, in most cases, depending on operating conditions.
